1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2013 - 2018 Intel Corporation. */ 3 4 /* ethtool support for i40e */ 5 6 #include <linux/net/intel/libie/pctype.h> 7 #include "i40e_devids.h" 8 #include "i40e_diag.h" 9 #include "i40e_txrx_common.h" 10 #include "i40e_virtchnl_pf.h" 11 12 /* ethtool statistics helpers */ 13 14 /** 15 * struct i40e_stats - definition for an ethtool statistic 16 * @stat_string: statistic name to display in ethtool -S output 17 * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64) 18 * @stat_offset: offsetof() the stat from a base pointer 19 * 20 * This structure defines a statistic to be added to the ethtool stats buffer. 21 * It defines a statistic as offset from a common base pointer. Stats should 22 * be defined in constant arrays using the I40E_STAT macro, with every element 23 * of the array using the same _type for calculating the sizeof_stat and 24 * stat_offset. 25 * 26 * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or 27 * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from 28 * the i40e_add_ethtool_stat() helper function. 29 * 30 * The @stat_string is interpreted as a format string, allowing formatted 31 * values to be inserted while looping over multiple structures for a given 32 * statistics array. Thus, every statistic string in an array should have the 33 * same type and number of format specifiers, to be formatted by variadic 34 * arguments to the i40e_add_stat_string() helper function. 35 **/ 36 struct i40e_stats { 37 char stat_string[ETH_GSTRING_LEN]; 38 int sizeof_stat; 39 int stat_offset; 40 }; 41 42 /* Helper macro to define an i40e_stat structure with proper size and type. 43 * Use this when defining constant statistics arrays. Note that @_type expects 44 * only a type name and is used multiple times. 45 */ 46 #define I40E_STAT(_type, _name, _stat) { \ 47 .stat_string = _name, \ 48 .sizeof_stat = sizeof_field(_type, _stat), \ 49 .stat_offset = offsetof(_type, _stat) \ 50 } 51 52 /* Helper macro for defining some statistics directly copied from the netdev 53 * stats structure. 54 */ 55 #define I40E_NETDEV_STAT(_net_stat) \ 56 I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat) 57 58 /* Helper macro for defining some statistics related to queues */ 59 #define I40E_QUEUE_STAT(_name, _stat) \ 60 I40E_STAT(struct i40e_ring, _name, _stat) 61 62 /* Stats associated with a Tx or Rx ring */ 63 static const struct i40e_stats i40e_gstrings_queue_stats[] = { 64 I40E_QUEUE_STAT("%s-%u.packets", stats.packets), 65 I40E_QUEUE_STAT("%s-%u.bytes", stats.bytes), 66 }; 67 68 /** 69 * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer 70 * @data: location to store the stat value 71 * @pointer: basis for where to copy from 72 * @stat: the stat definition 73 * 74 * Copies the stat data defined by the pointer and stat structure pair into 75 * the memory supplied as data. Used to implement i40e_add_ethtool_stats and 76 * i40e_add_queue_stats. If the pointer is null, data will be zero'd. 77 */ 78 static void 79 i40e_add_one_ethtool_stat(u64 *data, void *pointer, 80 const struct i40e_stats *stat) 81 { 82 char *p; 83 84 if (!pointer) { 85 /* ensure that the ethtool data buffer is zero'd for any stats 86 * which don't have a valid pointer. 87 */ 88 *data = 0; 89 return; 90 } 91 92 p = (char *)pointer + stat->stat_offset; 93 switch (stat->sizeof_stat) { 94 case sizeof(u64): 95 *data = *((u64 *)p); 96 break; 97 case sizeof(u32): 98 *data = *((u32 *)p); 99 break; 100 case sizeof(u16): 101 *data = *((u16 *)p); 102 break; 103 case sizeof(u8): 104 *data = *((u8 *)p); 105 break; 106 default: 107 WARN_ONCE(1, "unexpected stat size for %s", 108 stat->stat_string); 109 *data = 0; 110 } 111 } 112 113 /** 114 * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer 115 * @data: ethtool stats buffer 116 * @pointer: location to copy stats from 117 * @stats: array of stats to copy 118 * @size: the size of the stats definition 119 * 120 * Copy the stats defined by the stats array using the pointer as a base into 121 * the data buffer supplied by ethtool. Updates the data pointer to point to 122 * the next empty location for successive calls to __i40e_add_ethtool_stats. 123 * If pointer is null, set the data values to zero and update the pointer to 124 * skip these stats. 125 **/ 126 static void 127 __i40e_add_ethtool_stats(u64 **data, void *pointer, 128 const struct i40e_stats stats[], 129 const unsigned int size) 130 { 131 unsigned int i; 132 133 for (i = 0; i < size; i++) 134 i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]); 135 } 136 137 /** 138 * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer 139 * @data: ethtool stats buffer 140 * @pointer: location where stats are stored 141 * @stats: static const array of stat definitions 142 * 143 * Macro to ease the use of __i40e_add_ethtool_stats by taking a static 144 * constant stats array and passing the ARRAY_SIZE(). This avoids typos by 145 * ensuring that we pass the size associated with the given stats array. 146 * 147 * The parameter @stats is evaluated twice, so parameters with side effects 148 * should be avoided. 149 **/ 150 #define i40e_add_ethtool_stats(data, pointer, stats) \ 151 __i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats)) 152 153 /** 154 * i40e_add_queue_stats - copy queue statistics into supplied buffer 155 * @data: ethtool stats buffer 156 * @ring: the ring to copy 157 * 158 * Queue statistics must be copied while protected by 159 * u64_stats_fetch_begin, so we can't directly use i40e_add_ethtool_stats. 160 * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the 161 * ring pointer is null, zero out the queue stat values and update the data 162 * pointer. Otherwise safely copy the stats from the ring into the supplied 163 * buffer and update the data pointer when finished. 164 * 165 * This function expects to be called while under rcu_read_lock(). 166 **/ 167 static void 168 i40e_add_queue_stats(u64 **data, struct i40e_ring *ring) 169 { 170 const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats); 171 const struct i40e_stats *stats = i40e_gstrings_queue_stats; 172 unsigned int start; 173 unsigned int i; 174 175 /* To avoid invalid statistics values, ensure that we keep retrying 176 * the copy until we get a consistent value according to 177 * u64_stats_fetch_retry. But first, make sure our ring is 178 * non-null before attempting to access its syncp. 179 */ 180 do { 181 start = !ring ? 0 : u64_stats_fetch_begin(&ring->syncp); 182 for (i = 0; i < size; i++) { 183 i40e_add_one_ethtool_stat(&(*data)[i], ring, 184 &stats[i]); 185 } 186 } while (ring && u64_stats_fetch_retry(&ring->syncp, start)); 187 188 /* Once we successfully copy the stats in, update the data pointer */ 189 *data += size; 190 } 191 192 /** 193 * __i40e_add_stat_strings - copy stat strings into ethtool buffer 194 * @p: ethtool supplied buffer 195 * @stats: stat definitions array 196 * @size: size of the stats array 197 * 198 * Format and copy the strings described by stats into the buffer pointed at 199 * by p. 200 **/ 201 static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[], 202 const unsigned int size, ...) 203 { 204 unsigned int i; 205 206 for (i = 0; i < size; i++) { 207 va_list args; 208 209 va_start(args, size); 210 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args); 211 *p += ETH_GSTRING_LEN; 212 va_end(args); 213 } 214 } 215 216 /** 217 * i40e_add_stat_strings - copy stat strings into ethtool buffer 218 * @p: ethtool supplied buffer 219 * @stats: stat definitions array 220 * 221 * Format and copy the strings described by the const static stats value into 222 * the buffer pointed at by p. 223 * 224 * The parameter @stats is evaluated twice, so parameters with side effects 225 * should be avoided. Additionally, stats must be an array such that 226 * ARRAY_SIZE can be called on it. 227 **/ 228 #define i40e_add_stat_strings(p, stats, ...) \ 229 __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__) 230 231 #define I40E_PF_STAT(_name, _stat) \ 232 I40E_STAT(struct i40e_pf, _name, _stat) 233 #define I40E_VSI_STAT(_name, _stat) \ 234 I40E_STAT(struct i40e_vsi, _name, _stat) 235 #define I40E_VEB_STAT(_name, _stat) \ 236 I40E_STAT(struct i40e_veb, _name, _stat) 237 #define I40E_VEB_TC_STAT(_name, _stat) \ 238 I40E_STAT(struct i40e_cp_veb_tc_stats, _name, _stat) 239 #define I40E_PFC_STAT(_name, _stat) \ 240 I40E_STAT(struct i40e_pfc_stats, _name, _stat) 241 242 static const struct i40e_stats i40e_gstrings_net_stats[] = { 243 I40E_NETDEV_STAT(rx_packets), 244 I40E_NETDEV_STAT(tx_packets), 245 I40E_NETDEV_STAT(rx_bytes), 246 I40E_NETDEV_STAT(tx_bytes), 247 I40E_NETDEV_STAT(rx_errors), 248 I40E_NETDEV_STAT(tx_errors), 249 I40E_NETDEV_STAT(rx_dropped), 250 I40E_NETDEV_STAT(rx_missed_errors), 251 I40E_NETDEV_STAT(tx_dropped), 252 I40E_NETDEV_STAT(collisions), 253 I40E_NETDEV_STAT(rx_length_errors), 254 I40E_NETDEV_STAT(rx_crc_errors), 255 }; 256 257 static const struct i40e_stats i40e_gstrings_veb_stats[] = { 258 I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes), 259 I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes), 260 I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast), 261 I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast), 262 I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast), 263 I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast), 264 I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast), 265 I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast), 266 I40E_VEB_STAT("veb.rx_discards", stats.rx_discards), 267 I40E_VEB_STAT("veb.tx_discards", stats.tx_discards), 268 I40E_VEB_STAT("veb.tx_errors", stats.tx_errors), 269 I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol), 270 }; 271 272 struct i40e_cp_veb_tc_stats { 273 u64 tc_rx_packets; 274 u64 tc_rx_bytes; 275 u64 tc_tx_packets; 276 u64 tc_tx_bytes; 277 }; 278 279 static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = { 280 I40E_VEB_TC_STAT("veb.tc_%u_tx_packets", tc_tx_packets), 281 I40E_VEB_TC_STAT("veb.tc_%u_tx_bytes", tc_tx_bytes), 282 I40E_VEB_TC_STAT("veb.tc_%u_rx_packets", tc_rx_packets), 283 I40E_VEB_TC_STAT("veb.tc_%u_rx_bytes", tc_rx_bytes), 284 }; 285 286 static const struct i40e_stats i40e_gstrings_misc_stats[] = { 287 I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast), 288 I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast), 289 I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast), 290 I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast), 291 I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast), 292 I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast), 293 I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol), 294 I40E_VSI_STAT("tx_linearize", tx_linearize), 295 I40E_VSI_STAT("tx_force_wb", tx_force_wb), 296 I40E_VSI_STAT("tx_busy", tx_busy), 297 I40E_VSI_STAT("tx_stopped", tx_stopped), 298 I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed), 299 I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed), 300 I40E_VSI_STAT("rx_cache_reuse", rx_page_reuse), 301 I40E_VSI_STAT("rx_cache_alloc", rx_page_alloc), 302 I40E_VSI_STAT("rx_cache_waive", rx_page_waive), 303 I40E_VSI_STAT("rx_cache_busy", rx_page_busy), 304 I40E_VSI_STAT("tx_restart", tx_restart), 305 }; 306 307 /* These PF_STATs might look like duplicates of some NETDEV_STATs, 308 * but they are separate. This device supports Virtualization, and 309 * as such might have several netdevs supporting VMDq and FCoE going 310 * through a single port. The NETDEV_STATs are for individual netdevs 311 * seen at the top of the stack, and the PF_STATs are for the physical 312 * function at the bottom of the stack hosting those netdevs. 313 * 314 * The PF_STATs are appended to the netdev stats only when ethtool -S 315 * is queried on the base PF netdev, not on the VMDq or FCoE netdev. 316 */ 317 static const struct i40e_stats i40e_gstrings_stats[] = { 318 I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes), 319 I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes), 320 I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast), 321 I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast), 322 I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast), 323 I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast), 324 I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast), 325 I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast), 326 I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors), 327 I40E_PF_STAT("port.rx_discards", stats.eth.rx_discards), 328 I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down), 329 I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors), 330 I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes), 331 I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults), 332 I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults), 333 I40E_PF_STAT("port.tx_timeout", tx_timeout_count), 334 I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error), 335 I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors), 336 I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx), 337 I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx), 338 I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx), 339 I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx), 340 I40E_PF_STAT("port.rx_size_64", stats.rx_size_64), 341 I40E_PF_STAT("port.rx_size_127", stats.rx_size_127), 342 I40E_PF_STAT("port.rx_size_255", stats.rx_size_255), 343 I40E_PF_STAT("port.rx_size_511", stats.rx_size_511), 344 I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023), 345 I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522), 346 I40E_PF_STAT("port.rx_size_big", stats.rx_size_big), 347 I40E_PF_STAT("port.tx_size_64", stats.tx_size_64), 348 I40E_PF_STAT("port.tx_size_127", stats.tx_size_127), 349 I40E_PF_STAT("port.tx_size_255", stats.tx_size_255), 350 I40E_PF_STAT("port.tx_size_511", stats.tx_size_511), 351 I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023), 352 I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522), 353 I40E_PF_STAT("port.tx_size_big", stats.tx_size_big), 354 I40E_PF_STAT("port.rx_undersize", stats.rx_undersize), 355 I40E_PF_STAT("port.rx_fragments", stats.rx_fragments), 356 I40E_PF_STAT("port.rx_oversize", stats.rx_oversize), 357 I40E_PF_STAT("port.rx_jabber", stats.rx_jabber), 358 I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests), 359 I40E_PF_STAT("port.arq_overflows", arq_overflows), 360 I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), 361 I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared), 362 I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped), 363 I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt), 364 I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match), 365 I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match), 366 I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status), 367 I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match), 368 I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status), 369 370 /* LPI stats */ 371 I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status), 372 I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status), 373 I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count), 374 I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count), 375 }; 376 377 struct i40e_pfc_stats { 378 u64 priority_xon_rx; 379 u64 priority_xoff_rx; 380 u64 priority_xon_tx; 381 u64 priority_xoff_tx; 382 u64 priority_xon_2_xoff; 383 }; 384 385 static const struct i40e_stats i40e_gstrings_pfc_stats[] = { 386 I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx), 387 I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx), 388 I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx), 389 I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx), 390 I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff), 391 }; 392 393 #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats) 394 395 #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats) 396 397 #define I40E_VSI_STATS_LEN (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN) 398 399 #define I40E_PFC_STATS_LEN (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \ 400 I40E_MAX_USER_PRIORITY) 401 402 #define I40E_VEB_STATS_LEN (ARRAY_SIZE(i40e_gstrings_veb_stats) + \ 403 (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \ 404 I40E_MAX_TRAFFIC_CLASS)) 405 406 #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats) 407 408 #define I40E_PF_STATS_LEN (I40E_GLOBAL_STATS_LEN + \ 409 I40E_PFC_STATS_LEN + \ 410 I40E_VEB_STATS_LEN + \ 411 I40E_VSI_STATS_LEN) 412 413 /* Length of stats for a single queue */ 414 #define I40E_QUEUE_STATS_LEN ARRAY_SIZE(i40e_gstrings_queue_stats) 415 416 enum i40e_ethtool_test_id { 417 I40E_ETH_TEST_REG = 0, 418 I40E_ETH_TEST_EEPROM, 419 I40E_ETH_TEST_INTR, 420 I40E_ETH_TEST_LINK, 421 }; 422 423 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = { 424 "Register test (offline)", 425 "Eeprom test (offline)", 426 "Interrupt test (offline)", 427 "Link test (on/offline)" 428 }; 429 430 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN) 431 432 struct i40e_priv_flags { 433 char flag_string[ETH_GSTRING_LEN]; 434 u8 bitno; 435 bool read_only; 436 }; 437 438 #define I40E_PRIV_FLAG(_name, _bitno, _read_only) { \ 439 .flag_string = _name, \ 440 .bitno = _bitno, \ 441 .read_only = _read_only, \ 442 } 443 444 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = { 445 /* NOTE: MFP setting cannot be changed */ 446 I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENA, 1), 447 I40E_PRIV_FLAG("total-port-shutdown", 448 I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENA, 1), 449 I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENA, 0), 450 I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENA, 0), 451 I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENA, 0), 452 I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENA, 0), 453 I40E_PRIV_FLAG("link-down-on-close", 454 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, 0), 455 I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX_ENA, 0), 456 I40E_PRIV_FLAG("disable-source-pruning", 457 I40E_FLAG_SOURCE_PRUNING_DIS, 0), 458 I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_FW_LLDP_DIS, 0), 459 I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0), 460 I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0), 461 I40E_PRIV_FLAG("vf-vlan-pruning", 462 I40E_FLAG_VF_VLAN_PRUNING_ENA, 0), 463 I40E_PRIV_FLAG("mdd-auto-reset-vf", 464 I40E_FLAG_MDD_AUTO_RESET_VF, 0), 465 }; 466 467 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags) 468 469 /* Private flags with a global effect, restricted to PF 0 */ 470 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = { 471 I40E_PRIV_FLAG("vf-true-promisc-support", 472 I40E_FLAG_TRUE_PROMISC_ENA, 0), 473 }; 474 475 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags) 476 477 /** 478 * i40e_partition_setting_complaint - generic complaint for MFP restriction 479 * @pf: the PF struct 480 **/ 481 static void i40e_partition_setting_complaint(struct i40e_pf *pf) 482 { 483 dev_info(&pf->pdev->dev, 484 "The link settings are allowed to be changed only from the first partition of a given port. Please switch to the first partition in order to change the setting.\n"); 485 } 486 487 /** 488 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes 489 * @pf: PF struct with phy_types 490 * @ks: ethtool link ksettings struct to fill out 491 * 492 **/ 493 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, 494 struct ethtool_link_ksettings *ks) 495 { 496 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info; 497 u64 phy_types = pf->hw.phy.phy_types; 498 499 ethtool_link_ksettings_zero_link_mode(ks, supported); 500 ethtool_link_ksettings_zero_link_mode(ks, advertising); 501 502 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) { 503 ethtool_link_ksettings_add_link_mode(ks, supported, 504 1000baseT_Full); 505 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 506 ethtool_link_ksettings_add_link_mode(ks, advertising, 507 1000baseT_Full); 508 if (test_bit(I40E_HW_CAP_100M_SGMII, pf->hw.caps)) { 509 ethtool_link_ksettings_add_link_mode(ks, supported, 510 100baseT_Full); 511 ethtool_link_ksettings_add_link_mode(ks, advertising, 512 100baseT_Full); 513 } 514 } 515 if (phy_types & I40E_CAP_PHY_TYPE_XAUI || 516 phy_types & I40E_CAP_PHY_TYPE_XFI || 517 phy_types & I40E_CAP_PHY_TYPE_SFI || 518 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU || 519 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) { 520 ethtool_link_ksettings_add_link_mode(ks, supported, 521 10000baseT_Full); 522 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 523 ethtool_link_ksettings_add_link_mode(ks, advertising, 524 10000baseT_Full); 525 } 526 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) { 527 ethtool_link_ksettings_add_link_mode(ks, supported, 528 10000baseT_Full); 529 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 530 ethtool_link_ksettings_add_link_mode(ks, advertising, 531 10000baseT_Full); 532 } 533 if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) { 534 ethtool_link_ksettings_add_link_mode(ks, supported, 535 2500baseT_Full); 536 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 537 ethtool_link_ksettings_add_link_mode(ks, advertising, 538 2500baseT_Full); 539 } 540 if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) { 541 ethtool_link_ksettings_add_link_mode(ks, supported, 542 5000baseT_Full); 543 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 544 ethtool_link_ksettings_add_link_mode(ks, advertising, 545 5000baseT_Full); 546 } 547 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI || 548 phy_types & I40E_CAP_PHY_TYPE_XLPPI || 549 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC) 550 ethtool_link_ksettings_add_link_mode(ks, supported, 551 40000baseCR4_Full); 552 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 553 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) { 554 ethtool_link_ksettings_add_link_mode(ks, supported, 555 40000baseCR4_Full); 556 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB) 557 ethtool_link_ksettings_add_link_mode(ks, advertising, 558 40000baseCR4_Full); 559 } 560 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 561 ethtool_link_ksettings_add_link_mode(ks, supported, 562 100baseT_Full); 563 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 564 ethtool_link_ksettings_add_link_mode(ks, advertising, 565 100baseT_Full); 566 } 567 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) { 568 ethtool_link_ksettings_add_link_mode(ks, supported, 569 1000baseT_Full); 570 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 571 ethtool_link_ksettings_add_link_mode(ks, advertising, 572 1000baseT_Full); 573 } 574 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) { 575 ethtool_link_ksettings_add_link_mode(ks, supported, 576 40000baseSR4_Full); 577 ethtool_link_ksettings_add_link_mode(ks, advertising, 578 40000baseSR4_Full); 579 } 580 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) { 581 ethtool_link_ksettings_add_link_mode(ks, supported, 582 40000baseLR4_Full); 583 ethtool_link_ksettings_add_link_mode(ks, advertising, 584 40000baseLR4_Full); 585 } 586 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) { 587 ethtool_link_ksettings_add_link_mode(ks, supported, 588 40000baseKR4_Full); 589 ethtool_link_ksettings_add_link_mode(ks, advertising, 590 40000baseKR4_Full); 591 } 592 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) { 593 ethtool_link_ksettings_add_link_mode(ks, supported, 594 20000baseKR2_Full); 595 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB) 596 ethtool_link_ksettings_add_link_mode(ks, advertising, 597 20000baseKR2_Full); 598 } 599 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) { 600 ethtool_link_ksettings_add_link_mode(ks, supported, 601 10000baseKX4_Full); 602 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 603 ethtool_link_ksettings_add_link_mode(ks, advertising, 604 10000baseKX4_Full); 605 } 606 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR && 607 !test_bit(I40E_HW_CAP_CRT_RETIMER, pf->hw.caps)) { 608 ethtool_link_ksettings_add_link_mode(ks, supported, 609 10000baseKR_Full); 610 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 611 ethtool_link_ksettings_add_link_mode(ks, advertising, 612 10000baseKR_Full); 613 } 614 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX && 615 !test_bit(I40E_HW_CAP_CRT_RETIMER, pf->hw.caps)) { 616 ethtool_link_ksettings_add_link_mode(ks, supported, 617 1000baseKX_Full); 618 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 619 ethtool_link_ksettings_add_link_mode(ks, advertising, 620 1000baseKX_Full); 621 } 622 /* need to add 25G PHY types */ 623 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) { 624 ethtool_link_ksettings_add_link_mode(ks, supported, 625 25000baseKR_Full); 626 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 627 ethtool_link_ksettings_add_link_mode(ks, advertising, 628 25000baseKR_Full); 629 } 630 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) { 631 ethtool_link_ksettings_add_link_mode(ks, supported, 632 25000baseCR_Full); 633 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 634 ethtool_link_ksettings_add_link_mode(ks, advertising, 635 25000baseCR_Full); 636 } 637 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 638 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) { 639 ethtool_link_ksettings_add_link_mode(ks, supported, 640 25000baseSR_Full); 641 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 642 ethtool_link_ksettings_add_link_mode(ks, advertising, 643 25000baseSR_Full); 644 } 645 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 646 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 647 ethtool_link_ksettings_add_link_mode(ks, supported, 648 25000baseCR_Full); 649 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 650 ethtool_link_ksettings_add_link_mode(ks, advertising, 651 25000baseCR_Full); 652 } 653 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 654 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 655 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 656 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 657 phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 658 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 659 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 660 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 661 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 662 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) { 663 ethtool_link_ksettings_add_link_mode(ks, advertising, 664 FEC_NONE); 665 ethtool_link_ksettings_add_link_mode(ks, advertising, 666 FEC_RS); 667 ethtool_link_ksettings_add_link_mode(ks, advertising, 668 FEC_BASER); 669 } 670 } 671 /* need to add new 10G PHY types */ 672 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 673 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) { 674 ethtool_link_ksettings_add_link_mode(ks, supported, 675 10000baseCR_Full); 676 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 677 ethtool_link_ksettings_add_link_mode(ks, advertising, 678 10000baseCR_Full); 679 } 680 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) { 681 ethtool_link_ksettings_add_link_mode(ks, supported, 682 10000baseSR_Full); 683 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 684 ethtool_link_ksettings_add_link_mode(ks, advertising, 685 10000baseSR_Full); 686 } 687 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) { 688 ethtool_link_ksettings_add_link_mode(ks, supported, 689 10000baseLR_Full); 690 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 691 ethtool_link_ksettings_add_link_mode(ks, advertising, 692 10000baseLR_Full); 693 } 694 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 695 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 696 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) { 697 ethtool_link_ksettings_add_link_mode(ks, supported, 698 1000baseX_Full); 699 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 700 ethtool_link_ksettings_add_link_mode(ks, advertising, 701 1000baseX_Full); 702 } 703 /* Autoneg PHY types */ 704 if (phy_types & I40E_CAP_PHY_TYPE_SGMII || 705 phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 || 706 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 707 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 || 708 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 709 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 710 phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 711 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 712 phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 || 713 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR || 714 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR || 715 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 || 716 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR || 717 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU || 718 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 719 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T || 720 phy_types & I40E_CAP_PHY_TYPE_5GBASE_T || 721 phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T || 722 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL || 723 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T || 724 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 725 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 726 phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX || 727 phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 728 ethtool_link_ksettings_add_link_mode(ks, supported, 729 Autoneg); 730 ethtool_link_ksettings_add_link_mode(ks, advertising, 731 Autoneg); 732 } 733 } 734 735 /** 736 * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask 737 * @req_fec_info: mask request FEC info 738 * @ks: ethtool ksettings to fill in 739 **/ 740 static void i40e_get_settings_link_up_fec(u8 req_fec_info, 741 struct ethtool_link_ksettings *ks) 742 { 743 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 744 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 745 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 746 747 if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) && 748 (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) { 749 ethtool_link_ksettings_add_link_mode(ks, advertising, 750 FEC_NONE); 751 ethtool_link_ksettings_add_link_mode(ks, advertising, 752 FEC_BASER); 753 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 754 } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) { 755 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 756 } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) { 757 ethtool_link_ksettings_add_link_mode(ks, advertising, 758 FEC_BASER); 759 } else { 760 ethtool_link_ksettings_add_link_mode(ks, advertising, 761 FEC_NONE); 762 } 763 } 764 765 /** 766 * i40e_get_settings_link_up - Get the Link settings for when link is up 767 * @hw: hw structure 768 * @ks: ethtool ksettings to fill in 769 * @netdev: network interface device structure 770 * @pf: pointer to physical function struct 771 **/ 772 static void i40e_get_settings_link_up(struct i40e_hw *hw, 773 struct ethtool_link_ksettings *ks, 774 struct net_device *netdev, 775 struct i40e_pf *pf) 776 { 777 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 778 struct ethtool_link_ksettings cap_ksettings; 779 u32 link_speed = hw_link_info->link_speed; 780 781 /* Initialize supported and advertised settings based on phy settings */ 782 switch (hw_link_info->phy_type) { 783 case I40E_PHY_TYPE_40GBASE_CR4: 784 case I40E_PHY_TYPE_40GBASE_CR4_CU: 785 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 786 ethtool_link_ksettings_add_link_mode(ks, supported, 787 40000baseCR4_Full); 788 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 789 ethtool_link_ksettings_add_link_mode(ks, advertising, 790 40000baseCR4_Full); 791 break; 792 case I40E_PHY_TYPE_XLAUI: 793 case I40E_PHY_TYPE_XLPPI: 794 case I40E_PHY_TYPE_40GBASE_AOC: 795 ethtool_link_ksettings_add_link_mode(ks, supported, 796 40000baseCR4_Full); 797 ethtool_link_ksettings_add_link_mode(ks, advertising, 798 40000baseCR4_Full); 799 break; 800 case I40E_PHY_TYPE_40GBASE_SR4: 801 ethtool_link_ksettings_add_link_mode(ks, supported, 802 40000baseSR4_Full); 803 ethtool_link_ksettings_add_link_mode(ks, advertising, 804 40000baseSR4_Full); 805 break; 806 case I40E_PHY_TYPE_40GBASE_LR4: 807 ethtool_link_ksettings_add_link_mode(ks, supported, 808 40000baseLR4_Full); 809 ethtool_link_ksettings_add_link_mode(ks, advertising, 810 40000baseLR4_Full); 811 break; 812 case I40E_PHY_TYPE_25GBASE_SR: 813 case I40E_PHY_TYPE_25GBASE_LR: 814 case I40E_PHY_TYPE_10GBASE_SR: 815 case I40E_PHY_TYPE_10GBASE_LR: 816 case I40E_PHY_TYPE_1000BASE_SX: 817 case I40E_PHY_TYPE_1000BASE_LX: 818 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 819 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 820 ethtool_link_ksettings_add_link_mode(ks, supported, 821 25000baseSR_Full); 822 ethtool_link_ksettings_add_link_mode(ks, advertising, 823 25000baseSR_Full); 824 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 825 ethtool_link_ksettings_add_link_mode(ks, supported, 826 10000baseSR_Full); 827 ethtool_link_ksettings_add_link_mode(ks, advertising, 828 10000baseSR_Full); 829 ethtool_link_ksettings_add_link_mode(ks, supported, 830 10000baseLR_Full); 831 ethtool_link_ksettings_add_link_mode(ks, advertising, 832 10000baseLR_Full); 833 ethtool_link_ksettings_add_link_mode(ks, supported, 834 1000baseX_Full); 835 ethtool_link_ksettings_add_link_mode(ks, advertising, 836 1000baseX_Full); 837 ethtool_link_ksettings_add_link_mode(ks, supported, 838 10000baseT_Full); 839 if (hw_link_info->module_type[2] & 840 I40E_MODULE_TYPE_1000BASE_SX || 841 hw_link_info->module_type[2] & 842 I40E_MODULE_TYPE_1000BASE_LX) { 843 ethtool_link_ksettings_add_link_mode(ks, supported, 844 1000baseT_Full); 845 if (hw_link_info->requested_speeds & 846 I40E_LINK_SPEED_1GB) 847 ethtool_link_ksettings_add_link_mode( 848 ks, advertising, 1000baseT_Full); 849 } 850 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 851 ethtool_link_ksettings_add_link_mode(ks, advertising, 852 10000baseT_Full); 853 break; 854 case I40E_PHY_TYPE_10GBASE_T: 855 case I40E_PHY_TYPE_5GBASE_T_LINK_STATUS: 856 case I40E_PHY_TYPE_2_5GBASE_T_LINK_STATUS: 857 case I40E_PHY_TYPE_1000BASE_T: 858 case I40E_PHY_TYPE_100BASE_TX: 859 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 860 ethtool_link_ksettings_add_link_mode(ks, supported, 861 10000baseT_Full); 862 ethtool_link_ksettings_add_link_mode(ks, supported, 863 5000baseT_Full); 864 ethtool_link_ksettings_add_link_mode(ks, supported, 865 2500baseT_Full); 866 ethtool_link_ksettings_add_link_mode(ks, supported, 867 1000baseT_Full); 868 ethtool_link_ksettings_add_link_mode(ks, supported, 869 100baseT_Full); 870 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 871 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 872 ethtool_link_ksettings_add_link_mode(ks, advertising, 873 10000baseT_Full); 874 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 875 ethtool_link_ksettings_add_link_mode(ks, advertising, 876 5000baseT_Full); 877 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 878 ethtool_link_ksettings_add_link_mode(ks, advertising, 879 2500baseT_Full); 880 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 881 ethtool_link_ksettings_add_link_mode(ks, advertising, 882 1000baseT_Full); 883 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 884 ethtool_link_ksettings_add_link_mode(ks, advertising, 885 100baseT_Full); 886 break; 887 case I40E_PHY_TYPE_1000BASE_T_OPTICAL: 888 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 889 ethtool_link_ksettings_add_link_mode(ks, supported, 890 1000baseT_Full); 891 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 892 ethtool_link_ksettings_add_link_mode(ks, advertising, 893 1000baseT_Full); 894 break; 895 case I40E_PHY_TYPE_10GBASE_CR1_CU: 896 case I40E_PHY_TYPE_10GBASE_CR1: 897 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 898 ethtool_link_ksettings_add_link_mode(ks, supported, 899 10000baseT_Full); 900 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 901 ethtool_link_ksettings_add_link_mode(ks, advertising, 902 10000baseT_Full); 903 break; 904 case I40E_PHY_TYPE_XAUI: 905 case I40E_PHY_TYPE_XFI: 906 case I40E_PHY_TYPE_SFI: 907 case I40E_PHY_TYPE_10GBASE_SFPP_CU: 908 case I40E_PHY_TYPE_10GBASE_AOC: 909 ethtool_link_ksettings_add_link_mode(ks, supported, 910 10000baseT_Full); 911 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 912 ethtool_link_ksettings_add_link_mode(ks, advertising, 913 10000baseT_Full); 914 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 915 break; 916 case I40E_PHY_TYPE_SGMII: 917 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 918 ethtool_link_ksettings_add_link_mode(ks, supported, 919 1000baseT_Full); 920 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 921 ethtool_link_ksettings_add_link_mode(ks, advertising, 922 1000baseT_Full); 923 if (test_bit(I40E_HW_CAP_100M_SGMII, pf->hw.caps)) { 924 ethtool_link_ksettings_add_link_mode(ks, supported, 925 100baseT_Full); 926 if (hw_link_info->requested_speeds & 927 I40E_LINK_SPEED_100MB) 928 ethtool_link_ksettings_add_link_mode( 929 ks, advertising, 100baseT_Full); 930 } 931 break; 932 case I40E_PHY_TYPE_40GBASE_KR4: 933 case I40E_PHY_TYPE_25GBASE_KR: 934 case I40E_PHY_TYPE_20GBASE_KR2: 935 case I40E_PHY_TYPE_10GBASE_KR: 936 case I40E_PHY_TYPE_10GBASE_KX4: 937 case I40E_PHY_TYPE_1000BASE_KX: 938 ethtool_link_ksettings_add_link_mode(ks, supported, 939 40000baseKR4_Full); 940 ethtool_link_ksettings_add_link_mode(ks, supported, 941 25000baseKR_Full); 942 ethtool_link_ksettings_add_link_mode(ks, supported, 943 20000baseKR2_Full); 944 ethtool_link_ksettings_add_link_mode(ks, supported, 945 10000baseKR_Full); 946 ethtool_link_ksettings_add_link_mode(ks, supported, 947 10000baseKX4_Full); 948 ethtool_link_ksettings_add_link_mode(ks, supported, 949 1000baseKX_Full); 950 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 951 ethtool_link_ksettings_add_link_mode(ks, advertising, 952 40000baseKR4_Full); 953 ethtool_link_ksettings_add_link_mode(ks, advertising, 954 25000baseKR_Full); 955 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 956 ethtool_link_ksettings_add_link_mode(ks, advertising, 957 20000baseKR2_Full); 958 ethtool_link_ksettings_add_link_mode(ks, advertising, 959 10000baseKR_Full); 960 ethtool_link_ksettings_add_link_mode(ks, advertising, 961 10000baseKX4_Full); 962 ethtool_link_ksettings_add_link_mode(ks, advertising, 963 1000baseKX_Full); 964 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 965 break; 966 case I40E_PHY_TYPE_25GBASE_CR: 967 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 968 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 969 ethtool_link_ksettings_add_link_mode(ks, supported, 970 25000baseCR_Full); 971 ethtool_link_ksettings_add_link_mode(ks, advertising, 972 25000baseCR_Full); 973 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 974 975 break; 976 case I40E_PHY_TYPE_25GBASE_AOC: 977 case I40E_PHY_TYPE_25GBASE_ACC: 978 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 979 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 980 ethtool_link_ksettings_add_link_mode(ks, supported, 981 25000baseCR_Full); 982 ethtool_link_ksettings_add_link_mode(ks, advertising, 983 25000baseCR_Full); 984 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 985 986 ethtool_link_ksettings_add_link_mode(ks, supported, 987 10000baseCR_Full); 988 ethtool_link_ksettings_add_link_mode(ks, advertising, 989 10000baseCR_Full); 990 break; 991 default: 992 /* if we got here and link is up something bad is afoot */ 993 netdev_info(netdev, 994 "WARNING: Link is up but PHY type 0x%x is not recognized, or incorrect cable is in use\n", 995 hw_link_info->phy_type); 996 } 997 998 /* Now that we've worked out everything that could be supported by the 999 * current PHY type, get what is supported by the NVM and intersect 1000 * them to get what is truly supported 1001 */ 1002 memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings)); 1003 i40e_phy_type_to_ethtool(pf, &cap_ksettings); 1004 ethtool_intersect_link_masks(ks, &cap_ksettings); 1005 1006 /* Set speed and duplex */ 1007 switch (link_speed) { 1008 case I40E_LINK_SPEED_40GB: 1009 ks->base.speed = SPEED_40000; 1010 break; 1011 case I40E_LINK_SPEED_25GB: 1012 ks->base.speed = SPEED_25000; 1013 break; 1014 case I40E_LINK_SPEED_20GB: 1015 ks->base.speed = SPEED_20000; 1016 break; 1017 case I40E_LINK_SPEED_10GB: 1018 ks->base.speed = SPEED_10000; 1019 break; 1020 case I40E_LINK_SPEED_5GB: 1021 ks->base.speed = SPEED_5000; 1022 break; 1023 case I40E_LINK_SPEED_2_5GB: 1024 ks->base.speed = SPEED_2500; 1025 break; 1026 case I40E_LINK_SPEED_1GB: 1027 ks->base.speed = SPEED_1000; 1028 break; 1029 case I40E_LINK_SPEED_100MB: 1030 ks->base.speed = SPEED_100; 1031 break; 1032 default: 1033 ks->base.speed = SPEED_UNKNOWN; 1034 break; 1035 } 1036 ks->base.duplex = DUPLEX_FULL; 1037 } 1038 1039 /** 1040 * i40e_get_settings_link_down - Get the Link settings for when link is down 1041 * @hw: hw structure 1042 * @ks: ethtool ksettings to fill in 1043 * @pf: pointer to physical function struct 1044 * 1045 * Reports link settings that can be determined when link is down 1046 **/ 1047 static void i40e_get_settings_link_down(struct i40e_hw *hw, 1048 struct ethtool_link_ksettings *ks, 1049 struct i40e_pf *pf) 1050 { 1051 /* link is down and the driver needs to fall back on 1052 * supported phy types to figure out what info to display 1053 */ 1054 i40e_phy_type_to_ethtool(pf, ks); 1055 1056 /* With no link speed and duplex are unknown */ 1057 ks->base.speed = SPEED_UNKNOWN; 1058 ks->base.duplex = DUPLEX_UNKNOWN; 1059 } 1060 1061 /** 1062 * i40e_get_link_ksettings - Get Link Speed and Duplex settings 1063 * @netdev: network interface device structure 1064 * @ks: ethtool ksettings 1065 * 1066 * Reports speed/duplex settings based on media_type 1067 **/ 1068 static int i40e_get_link_ksettings(struct net_device *netdev, 1069 struct ethtool_link_ksettings *ks) 1070 { 1071 struct i40e_netdev_priv *np = netdev_priv(netdev); 1072 struct i40e_pf *pf = np->vsi->back; 1073 struct i40e_hw *hw = &pf->hw; 1074 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1075 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1076 1077 ethtool_link_ksettings_zero_link_mode(ks, supported); 1078 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1079 1080 if (link_up) 1081 i40e_get_settings_link_up(hw, ks, netdev, pf); 1082 else 1083 i40e_get_settings_link_down(hw, ks, pf); 1084 1085 /* Now set the settings that don't rely on link being up/down */ 1086 /* Set autoneg settings */ 1087 ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1088 AUTONEG_ENABLE : AUTONEG_DISABLE); 1089 1090 /* Set media type settings */ 1091 switch (hw->phy.media_type) { 1092 case I40E_MEDIA_TYPE_BACKPLANE: 1093 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 1094 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); 1095 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 1096 ethtool_link_ksettings_add_link_mode(ks, advertising, 1097 Backplane); 1098 ks->base.port = PORT_NONE; 1099 break; 1100 case I40E_MEDIA_TYPE_BASET: 1101 ethtool_link_ksettings_add_link_mode(ks, supported, TP); 1102 ethtool_link_ksettings_add_link_mode(ks, advertising, TP); 1103 ks->base.port = PORT_TP; 1104 break; 1105 case I40E_MEDIA_TYPE_DA: 1106 case I40E_MEDIA_TYPE_CX4: 1107 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1108 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1109 ks->base.port = PORT_DA; 1110 break; 1111 case I40E_MEDIA_TYPE_FIBER: 1112 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1113 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1114 ks->base.port = PORT_FIBRE; 1115 break; 1116 case I40E_MEDIA_TYPE_UNKNOWN: 1117 default: 1118 ks->base.port = PORT_OTHER; 1119 break; 1120 } 1121 1122 /* Set flow control settings */ 1123 ethtool_link_ksettings_add_link_mode(ks, supported, Pause); 1124 ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause); 1125 1126 switch (hw->fc.requested_mode) { 1127 case I40E_FC_FULL: 1128 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1129 break; 1130 case I40E_FC_TX_PAUSE: 1131 ethtool_link_ksettings_add_link_mode(ks, advertising, 1132 Asym_Pause); 1133 break; 1134 case I40E_FC_RX_PAUSE: 1135 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1136 ethtool_link_ksettings_add_link_mode(ks, advertising, 1137 Asym_Pause); 1138 break; 1139 default: 1140 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); 1141 ethtool_link_ksettings_del_link_mode(ks, advertising, 1142 Asym_Pause); 1143 break; 1144 } 1145 1146 return 0; 1147 } 1148 1149 #define I40E_LBIT_SIZE 8 1150 /** 1151 * i40e_speed_to_link_speed - Translate decimal speed to i40e_aq_link_speed 1152 * @speed: speed in decimal 1153 * @ks: ethtool ksettings 1154 * 1155 * Return i40e_aq_link_speed based on speed 1156 **/ 1157 static enum i40e_aq_link_speed 1158 i40e_speed_to_link_speed(__u32 speed, const struct ethtool_link_ksettings *ks) 1159 { 1160 enum i40e_aq_link_speed link_speed = I40E_LINK_SPEED_UNKNOWN; 1161 bool speed_changed = false; 1162 int i, j; 1163 1164 static const struct { 1165 __u32 speed; 1166 enum i40e_aq_link_speed link_speed; 1167 __u8 bit[I40E_LBIT_SIZE]; 1168 } i40e_speed_lut[] = { 1169 #define I40E_LBIT(mode) ETHTOOL_LINK_MODE_ ## mode ##_Full_BIT 1170 {SPEED_100, I40E_LINK_SPEED_100MB, {I40E_LBIT(100baseT)} }, 1171 {SPEED_1000, I40E_LINK_SPEED_1GB, 1172 {I40E_LBIT(1000baseT), I40E_LBIT(1000baseX), 1173 I40E_LBIT(1000baseKX)} }, 1174 {SPEED_10000, I40E_LINK_SPEED_10GB, 1175 {I40E_LBIT(10000baseT), I40E_LBIT(10000baseKR), 1176 I40E_LBIT(10000baseLR), I40E_LBIT(10000baseCR), 1177 I40E_LBIT(10000baseSR), I40E_LBIT(10000baseKX4)} }, 1178 1179 {SPEED_25000, I40E_LINK_SPEED_25GB, 1180 {I40E_LBIT(25000baseCR), I40E_LBIT(25000baseKR), 1181 I40E_LBIT(25000baseSR)} }, 1182 {SPEED_40000, I40E_LINK_SPEED_40GB, 1183 {I40E_LBIT(40000baseKR4), I40E_LBIT(40000baseCR4), 1184 I40E_LBIT(40000baseSR4), I40E_LBIT(40000baseLR4)} }, 1185 {SPEED_20000, I40E_LINK_SPEED_20GB, 1186 {I40E_LBIT(20000baseKR2)} }, 1187 {SPEED_2500, I40E_LINK_SPEED_2_5GB, {I40E_LBIT(2500baseT)} }, 1188 {SPEED_5000, I40E_LINK_SPEED_5GB, {I40E_LBIT(2500baseT)} } 1189 #undef I40E_LBIT 1190 }; 1191 1192 for (i = 0; i < ARRAY_SIZE(i40e_speed_lut); i++) { 1193 if (i40e_speed_lut[i].speed == speed) { 1194 for (j = 0; j < I40E_LBIT_SIZE; j++) { 1195 if (test_bit(i40e_speed_lut[i].bit[j], 1196 ks->link_modes.supported)) { 1197 speed_changed = true; 1198 break; 1199 } 1200 if (!i40e_speed_lut[i].bit[j]) 1201 break; 1202 } 1203 if (speed_changed) { 1204 link_speed = i40e_speed_lut[i].link_speed; 1205 break; 1206 } 1207 } 1208 } 1209 return link_speed; 1210 } 1211 1212 #undef I40E_LBIT_SIZE 1213 1214 /** 1215 * i40e_set_link_ksettings - Set Speed and Duplex 1216 * @netdev: network interface device structure 1217 * @ks: ethtool ksettings 1218 * 1219 * Set speed/duplex per media_types advertised/forced 1220 **/ 1221 static int i40e_set_link_ksettings(struct net_device *netdev, 1222 const struct ethtool_link_ksettings *ks) 1223 { 1224 struct i40e_netdev_priv *np = netdev_priv(netdev); 1225 struct i40e_aq_get_phy_abilities_resp abilities; 1226 struct ethtool_link_ksettings safe_ks; 1227 struct ethtool_link_ksettings copy_ks; 1228 struct i40e_aq_set_phy_config config; 1229 struct i40e_pf *pf = np->vsi->back; 1230 enum i40e_aq_link_speed link_speed; 1231 struct i40e_vsi *vsi = np->vsi; 1232 struct i40e_hw *hw = &pf->hw; 1233 bool autoneg_changed = false; 1234 int timeout = 50; 1235 int status = 0; 1236 int err = 0; 1237 __u32 speed; 1238 u8 autoneg; 1239 1240 /* Changing port settings is not supported if this isn't the 1241 * port's controlling PF 1242 */ 1243 if (hw->partition_id != 1) { 1244 i40e_partition_setting_complaint(pf); 1245 return -EOPNOTSUPP; 1246 } 1247 if (vsi->type != I40E_VSI_MAIN) 1248 return -EOPNOTSUPP; 1249 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET && 1250 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER && 1251 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE && 1252 hw->phy.media_type != I40E_MEDIA_TYPE_DA && 1253 hw->phy.link_info.link_info & I40E_AQ_LINK_UP) 1254 return -EOPNOTSUPP; 1255 if (hw->device_id == I40E_DEV_ID_KX_B || 1256 hw->device_id == I40E_DEV_ID_KX_C || 1257 hw->device_id == I40E_DEV_ID_20G_KR2 || 1258 hw->device_id == I40E_DEV_ID_20G_KR2_A || 1259 hw->device_id == I40E_DEV_ID_25G_B || 1260 hw->device_id == I40E_DEV_ID_KX_X722) { 1261 netdev_info(netdev, "Changing settings is not supported on backplane.\n"); 1262 return -EOPNOTSUPP; 1263 } 1264 1265 /* copy the ksettings to copy_ks to avoid modifying the origin */ 1266 memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings)); 1267 1268 /* save autoneg out of ksettings */ 1269 autoneg = copy_ks.base.autoneg; 1270 speed = copy_ks.base.speed; 1271 1272 /* get our own copy of the bits to check against */ 1273 memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings)); 1274 safe_ks.base.cmd = copy_ks.base.cmd; 1275 safe_ks.base.link_mode_masks_nwords = 1276 copy_ks.base.link_mode_masks_nwords; 1277 i40e_get_link_ksettings(netdev, &safe_ks); 1278 1279 /* Get link modes supported by hardware and check against modes 1280 * requested by the user. Return an error if unsupported mode was set. 1281 */ 1282 if (!bitmap_subset(copy_ks.link_modes.advertising, 1283 safe_ks.link_modes.supported, 1284 __ETHTOOL_LINK_MODE_MASK_NBITS)) 1285 return -EINVAL; 1286 1287 /* set autoneg back to what it currently is */ 1288 copy_ks.base.autoneg = safe_ks.base.autoneg; 1289 copy_ks.base.speed = safe_ks.base.speed; 1290 1291 /* If copy_ks.base and safe_ks.base are not the same now, then they are 1292 * trying to set something that we do not support. 1293 */ 1294 if (memcmp(©_ks.base, &safe_ks.base, 1295 sizeof(struct ethtool_link_settings))) { 1296 netdev_err(netdev, "Only speed and autoneg are supported.\n"); 1297 return -EOPNOTSUPP; 1298 } 1299 1300 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1301 timeout--; 1302 if (!timeout) 1303 return -EBUSY; 1304 usleep_range(1000, 2000); 1305 } 1306 1307 /* Get the current phy config */ 1308 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1309 NULL); 1310 if (status) { 1311 err = -EAGAIN; 1312 goto done; 1313 } 1314 1315 /* Copy abilities to config in case autoneg is not 1316 * set below 1317 */ 1318 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config)); 1319 config.abilities = abilities.abilities; 1320 1321 /* Check autoneg */ 1322 if (autoneg == AUTONEG_ENABLE) { 1323 /* If autoneg was not already enabled */ 1324 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) { 1325 /* If autoneg is not supported, return error */ 1326 if (!ethtool_link_ksettings_test_link_mode(&safe_ks, 1327 supported, 1328 Autoneg)) { 1329 netdev_info(netdev, "Autoneg not supported on this phy\n"); 1330 err = -EINVAL; 1331 goto done; 1332 } 1333 /* Autoneg is allowed to change */ 1334 config.abilities = abilities.abilities | 1335 I40E_AQ_PHY_ENABLE_AN; 1336 autoneg_changed = true; 1337 } 1338 } else { 1339 /* If autoneg is currently enabled */ 1340 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) { 1341 /* If autoneg is supported 10GBASE_T is the only PHY 1342 * that can disable it, so otherwise return error 1343 */ 1344 if (ethtool_link_ksettings_test_link_mode(&safe_ks, 1345 supported, 1346 Autoneg) && 1347 hw->phy.media_type != I40E_MEDIA_TYPE_BASET) { 1348 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 1349 err = -EINVAL; 1350 goto done; 1351 } 1352 /* Autoneg is allowed to change */ 1353 config.abilities = abilities.abilities & 1354 ~I40E_AQ_PHY_ENABLE_AN; 1355 autoneg_changed = true; 1356 } 1357 } 1358 1359 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1360 100baseT_Full)) 1361 config.link_speed |= I40E_LINK_SPEED_100MB; 1362 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1363 1000baseT_Full) || 1364 ethtool_link_ksettings_test_link_mode(ks, advertising, 1365 1000baseX_Full) || 1366 ethtool_link_ksettings_test_link_mode(ks, advertising, 1367 1000baseKX_Full)) 1368 config.link_speed |= I40E_LINK_SPEED_1GB; 1369 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1370 10000baseT_Full) || 1371 ethtool_link_ksettings_test_link_mode(ks, advertising, 1372 10000baseKX4_Full) || 1373 ethtool_link_ksettings_test_link_mode(ks, advertising, 1374 10000baseKR_Full) || 1375 ethtool_link_ksettings_test_link_mode(ks, advertising, 1376 10000baseCR_Full) || 1377 ethtool_link_ksettings_test_link_mode(ks, advertising, 1378 10000baseSR_Full) || 1379 ethtool_link_ksettings_test_link_mode(ks, advertising, 1380 10000baseLR_Full)) 1381 config.link_speed |= I40E_LINK_SPEED_10GB; 1382 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1383 2500baseT_Full)) 1384 config.link_speed |= I40E_LINK_SPEED_2_5GB; 1385 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1386 5000baseT_Full)) 1387 config.link_speed |= I40E_LINK_SPEED_5GB; 1388 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1389 20000baseKR2_Full)) 1390 config.link_speed |= I40E_LINK_SPEED_20GB; 1391 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1392 25000baseCR_Full) || 1393 ethtool_link_ksettings_test_link_mode(ks, advertising, 1394 25000baseKR_Full) || 1395 ethtool_link_ksettings_test_link_mode(ks, advertising, 1396 25000baseSR_Full)) 1397 config.link_speed |= I40E_LINK_SPEED_25GB; 1398 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1399 40000baseKR4_Full) || 1400 ethtool_link_ksettings_test_link_mode(ks, advertising, 1401 40000baseCR4_Full) || 1402 ethtool_link_ksettings_test_link_mode(ks, advertising, 1403 40000baseSR4_Full) || 1404 ethtool_link_ksettings_test_link_mode(ks, advertising, 1405 40000baseLR4_Full)) 1406 config.link_speed |= I40E_LINK_SPEED_40GB; 1407 1408 /* Autonegotiation must be disabled to change speed */ 1409 if ((speed != SPEED_UNKNOWN && safe_ks.base.speed != speed) && 1410 (autoneg == AUTONEG_DISABLE || 1411 (safe_ks.base.autoneg == AUTONEG_DISABLE && !autoneg_changed))) { 1412 link_speed = i40e_speed_to_link_speed(speed, ks); 1413 if (link_speed == I40E_LINK_SPEED_UNKNOWN) { 1414 netdev_info(netdev, "Given speed is not supported\n"); 1415 err = -EOPNOTSUPP; 1416 goto done; 1417 } else { 1418 config.link_speed = link_speed; 1419 } 1420 } else { 1421 if (safe_ks.base.speed != speed) { 1422 netdev_info(netdev, 1423 "Unable to set speed, disable autoneg\n"); 1424 err = -EOPNOTSUPP; 1425 goto done; 1426 } 1427 } 1428 1429 /* If speed didn't get set, set it to what it currently is. 1430 * This is needed because if advertise is 0 (as it is when autoneg 1431 * is disabled) then speed won't get set. 1432 */ 1433 if (!config.link_speed) 1434 config.link_speed = abilities.link_speed; 1435 if (autoneg_changed || abilities.link_speed != config.link_speed) { 1436 /* copy over the rest of the abilities */ 1437 config.phy_type = abilities.phy_type; 1438 config.phy_type_ext = abilities.phy_type_ext; 1439 config.eee_capability = abilities.eee_capability; 1440 config.eeer = abilities.eeer_val; 1441 config.low_power_ctrl = abilities.d3_lpan; 1442 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 1443 I40E_AQ_PHY_FEC_CONFIG_MASK; 1444 1445 /* save the requested speeds */ 1446 hw->phy.link_info.requested_speeds = config.link_speed; 1447 /* set link and auto negotiation so changes take effect */ 1448 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1449 /* If link is up put link down */ 1450 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) { 1451 /* Tell the OS link is going down, the link will go 1452 * back up when fw says it is ready asynchronously 1453 */ 1454 i40e_print_link_message(vsi, false); 1455 netif_carrier_off(netdev); 1456 netif_tx_stop_all_queues(netdev); 1457 } 1458 1459 /* make the aq call */ 1460 status = i40e_aq_set_phy_config(hw, &config, NULL); 1461 if (status) { 1462 netdev_info(netdev, 1463 "Set phy config failed, err %pe aq_err %s\n", 1464 ERR_PTR(status), 1465 libie_aq_str(hw->aq.asq_last_status)); 1466 err = -EAGAIN; 1467 goto done; 1468 } 1469 1470 status = i40e_update_link_info(hw); 1471 if (status) 1472 netdev_dbg(netdev, 1473 "Updating link info failed with err %pe aq_err %s\n", 1474 ERR_PTR(status), 1475 libie_aq_str(hw->aq.asq_last_status)); 1476 1477 } else { 1478 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 1479 } 1480 1481 done: 1482 clear_bit(__I40E_CONFIG_BUSY, pf->state); 1483 1484 return err; 1485 } 1486 1487 static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg) 1488 { 1489 struct i40e_netdev_priv *np = netdev_priv(netdev); 1490 struct i40e_aq_get_phy_abilities_resp abilities; 1491 struct i40e_pf *pf = np->vsi->back; 1492 struct i40e_hw *hw = &pf->hw; 1493 int status = 0; 1494 int err = 0; 1495 1496 /* Get the current phy config */ 1497 memset(&abilities, 0, sizeof(abilities)); 1498 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1499 NULL); 1500 if (status) { 1501 err = -EAGAIN; 1502 goto done; 1503 } 1504 1505 if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) { 1506 struct i40e_aq_set_phy_config config; 1507 1508 memset(&config, 0, sizeof(config)); 1509 config.phy_type = abilities.phy_type; 1510 config.abilities = abilities.abilities | 1511 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1512 config.phy_type_ext = abilities.phy_type_ext; 1513 config.link_speed = abilities.link_speed; 1514 config.eee_capability = abilities.eee_capability; 1515 config.eeer = abilities.eeer_val; 1516 config.low_power_ctrl = abilities.d3_lpan; 1517 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK; 1518 status = i40e_aq_set_phy_config(hw, &config, NULL); 1519 if (status) { 1520 netdev_info(netdev, 1521 "Set phy config failed, err %pe aq_err %s\n", 1522 ERR_PTR(status), 1523 libie_aq_str(hw->aq.asq_last_status)); 1524 err = -EAGAIN; 1525 goto done; 1526 } 1527 i40e_set_fec_in_flags(fec_cfg, pf->flags); 1528 status = i40e_update_link_info(hw); 1529 if (status) 1530 /* debug level message only due to relation to the link 1531 * itself rather than to the FEC settings 1532 * (e.g. no physical connection etc.) 1533 */ 1534 netdev_dbg(netdev, 1535 "Updating link info failed with err %pe aq_err %s\n", 1536 ERR_PTR(status), 1537 libie_aq_str(hw->aq.asq_last_status)); 1538 } 1539 1540 done: 1541 return err; 1542 } 1543 1544 static int i40e_get_fec_param(struct net_device *netdev, 1545 struct ethtool_fecparam *fecparam) 1546 { 1547 struct i40e_netdev_priv *np = netdev_priv(netdev); 1548 struct i40e_aq_get_phy_abilities_resp abilities; 1549 struct i40e_pf *pf = np->vsi->back; 1550 struct i40e_hw *hw = &pf->hw; 1551 int status = 0; 1552 int err = 0; 1553 u8 fec_cfg; 1554 1555 /* Get the current phy config */ 1556 memset(&abilities, 0, sizeof(abilities)); 1557 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1558 NULL); 1559 if (status) { 1560 err = -EAGAIN; 1561 goto done; 1562 } 1563 1564 fecparam->fec = 0; 1565 fec_cfg = abilities.fec_cfg_curr_mod_ext_info; 1566 if (fec_cfg & I40E_AQ_SET_FEC_AUTO) 1567 fecparam->fec |= ETHTOOL_FEC_AUTO; 1568 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS | 1569 I40E_AQ_SET_FEC_ABILITY_RS)) 1570 fecparam->fec |= ETHTOOL_FEC_RS; 1571 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR | 1572 I40E_AQ_SET_FEC_ABILITY_KR)) 1573 fecparam->fec |= ETHTOOL_FEC_BASER; 1574 if (fec_cfg == 0) 1575 fecparam->fec |= ETHTOOL_FEC_OFF; 1576 1577 if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA) 1578 fecparam->active_fec = ETHTOOL_FEC_BASER; 1579 else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA) 1580 fecparam->active_fec = ETHTOOL_FEC_RS; 1581 else 1582 fecparam->active_fec = ETHTOOL_FEC_OFF; 1583 done: 1584 return err; 1585 } 1586 1587 static int i40e_set_fec_param(struct net_device *netdev, 1588 struct ethtool_fecparam *fecparam) 1589 { 1590 struct i40e_netdev_priv *np = netdev_priv(netdev); 1591 struct i40e_pf *pf = np->vsi->back; 1592 struct i40e_hw *hw = &pf->hw; 1593 u8 fec_cfg = 0; 1594 1595 if (hw->device_id != I40E_DEV_ID_25G_SFP28 && 1596 hw->device_id != I40E_DEV_ID_25G_B && 1597 hw->device_id != I40E_DEV_ID_KX_X722) 1598 return -EPERM; 1599 1600 if (hw->mac.type == I40E_MAC_X722 && 1601 !test_bit(I40E_HW_CAP_X722_FEC_REQUEST, hw->caps)) { 1602 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n"); 1603 return -EOPNOTSUPP; 1604 } 1605 1606 switch (fecparam->fec) { 1607 case ETHTOOL_FEC_AUTO: 1608 fec_cfg = I40E_AQ_SET_FEC_AUTO; 1609 break; 1610 case ETHTOOL_FEC_RS: 1611 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 1612 I40E_AQ_SET_FEC_ABILITY_RS); 1613 break; 1614 case ETHTOOL_FEC_BASER: 1615 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 1616 I40E_AQ_SET_FEC_ABILITY_KR); 1617 break; 1618 case ETHTOOL_FEC_OFF: 1619 case ETHTOOL_FEC_NONE: 1620 fec_cfg = 0; 1621 break; 1622 default: 1623 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d", 1624 fecparam->fec); 1625 return -EINVAL; 1626 } 1627 1628 return i40e_set_fec_cfg(netdev, fec_cfg); 1629 } 1630 1631 static int i40e_nway_reset(struct net_device *netdev) 1632 { 1633 /* restart autonegotiation */ 1634 struct i40e_netdev_priv *np = netdev_priv(netdev); 1635 struct i40e_pf *pf = np->vsi->back; 1636 struct i40e_hw *hw = &pf->hw; 1637 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP; 1638 int ret = 0; 1639 1640 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL); 1641 if (ret) { 1642 netdev_info(netdev, "link restart failed, err %pe aq_err %s\n", 1643 ERR_PTR(ret), 1644 libie_aq_str(hw->aq.asq_last_status)); 1645 return -EIO; 1646 } 1647 1648 return 0; 1649 } 1650 1651 /** 1652 * i40e_get_pauseparam - Get Flow Control status 1653 * @netdev: netdevice structure 1654 * @pause: buffer to return pause parameters 1655 * 1656 * Return tx/rx-pause status 1657 **/ 1658 static void i40e_get_pauseparam(struct net_device *netdev, 1659 struct ethtool_pauseparam *pause) 1660 { 1661 struct i40e_netdev_priv *np = netdev_priv(netdev); 1662 struct i40e_pf *pf = np->vsi->back; 1663 struct i40e_hw *hw = &pf->hw; 1664 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1665 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1666 1667 pause->autoneg = 1668 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1669 AUTONEG_ENABLE : AUTONEG_DISABLE); 1670 1671 /* PFC enabled so report LFC as off */ 1672 if (dcbx_cfg->pfc.pfcenable) { 1673 pause->rx_pause = 0; 1674 pause->tx_pause = 0; 1675 return; 1676 } 1677 1678 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) { 1679 pause->rx_pause = 1; 1680 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) { 1681 pause->tx_pause = 1; 1682 } else if (hw->fc.current_mode == I40E_FC_FULL) { 1683 pause->rx_pause = 1; 1684 pause->tx_pause = 1; 1685 } 1686 } 1687 1688 /** 1689 * i40e_set_pauseparam - Set Flow Control parameter 1690 * @netdev: network interface device structure 1691 * @pause: return tx/rx flow control status 1692 **/ 1693 static int i40e_set_pauseparam(struct net_device *netdev, 1694 struct ethtool_pauseparam *pause) 1695 { 1696 struct i40e_netdev_priv *np = netdev_priv(netdev); 1697 struct i40e_pf *pf = np->vsi->back; 1698 struct i40e_vsi *vsi = np->vsi; 1699 struct i40e_hw *hw = &pf->hw; 1700 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1701 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1702 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1703 u8 aq_failures; 1704 int err = 0; 1705 int status; 1706 u32 is_an; 1707 1708 /* Changing the port's flow control is not supported if this isn't the 1709 * port's controlling PF 1710 */ 1711 if (hw->partition_id != 1) { 1712 i40e_partition_setting_complaint(pf); 1713 return -EOPNOTSUPP; 1714 } 1715 1716 if (vsi->type != I40E_VSI_MAIN) 1717 return -EOPNOTSUPP; 1718 1719 is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED; 1720 if (pause->autoneg != is_an) { 1721 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 1722 return -EOPNOTSUPP; 1723 } 1724 1725 /* If we have link and don't have autoneg */ 1726 if (!test_bit(__I40E_DOWN, pf->state) && !is_an) { 1727 /* Send message that it might not necessarily work*/ 1728 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 1729 } 1730 1731 if (dcbx_cfg->pfc.pfcenable) { 1732 netdev_info(netdev, 1733 "Priority flow control enabled. Cannot set link flow control.\n"); 1734 return -EOPNOTSUPP; 1735 } 1736 1737 if (pause->rx_pause && pause->tx_pause) 1738 hw->fc.requested_mode = I40E_FC_FULL; 1739 else if (pause->rx_pause && !pause->tx_pause) 1740 hw->fc.requested_mode = I40E_FC_RX_PAUSE; 1741 else if (!pause->rx_pause && pause->tx_pause) 1742 hw->fc.requested_mode = I40E_FC_TX_PAUSE; 1743 else if (!pause->rx_pause && !pause->tx_pause) 1744 hw->fc.requested_mode = I40E_FC_NONE; 1745 else 1746 return -EINVAL; 1747 1748 /* Tell the OS link is going down, the link will go back up when fw 1749 * says it is ready asynchronously 1750 */ 1751 i40e_print_link_message(vsi, false); 1752 netif_carrier_off(netdev); 1753 netif_tx_stop_all_queues(netdev); 1754 1755 /* Set the fc mode and only restart an if link is up*/ 1756 status = i40e_set_fc(hw, &aq_failures, link_up); 1757 1758 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) { 1759 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %pe aq_err %s\n", 1760 ERR_PTR(status), 1761 libie_aq_str(hw->aq.asq_last_status)); 1762 err = -EAGAIN; 1763 } 1764 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) { 1765 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %pe aq_err %s\n", 1766 ERR_PTR(status), 1767 libie_aq_str(hw->aq.asq_last_status)); 1768 err = -EAGAIN; 1769 } 1770 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) { 1771 netdev_info(netdev, "Set fc failed on the get_link_info call with err %pe aq_err %s\n", 1772 ERR_PTR(status), 1773 libie_aq_str(hw->aq.asq_last_status)); 1774 err = -EAGAIN; 1775 } 1776 1777 if (!test_bit(__I40E_DOWN, pf->state) && is_an) { 1778 /* Give it a little more time to try to come back */ 1779 msleep(75); 1780 if (!test_bit(__I40E_DOWN, pf->state)) 1781 return i40e_nway_reset(netdev); 1782 } 1783 1784 return err; 1785 } 1786 1787 static u32 i40e_get_msglevel(struct net_device *netdev) 1788 { 1789 struct i40e_netdev_priv *np = netdev_priv(netdev); 1790 struct i40e_pf *pf = np->vsi->back; 1791 u32 debug_mask = pf->hw.debug_mask; 1792 1793 if (debug_mask) 1794 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask); 1795 1796 return pf->msg_enable; 1797 } 1798 1799 static void i40e_set_msglevel(struct net_device *netdev, u32 data) 1800 { 1801 struct i40e_netdev_priv *np = netdev_priv(netdev); 1802 struct i40e_pf *pf = np->vsi->back; 1803 1804 if (I40E_DEBUG_USER & data) 1805 pf->hw.debug_mask = data; 1806 else 1807 pf->msg_enable = data; 1808 } 1809 1810 static int i40e_get_regs_len(struct net_device *netdev) 1811 { 1812 int reg_count = 0; 1813 int i; 1814 1815 for (i = 0; i40e_reg_list[i].offset != 0; i++) 1816 reg_count += i40e_reg_list[i].elements; 1817 1818 return reg_count * sizeof(u32); 1819 } 1820 1821 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs, 1822 void *p) 1823 { 1824 struct i40e_netdev_priv *np = netdev_priv(netdev); 1825 struct i40e_pf *pf = np->vsi->back; 1826 struct i40e_hw *hw = &pf->hw; 1827 u32 *reg_buf = p; 1828 unsigned int i, j, ri; 1829 u32 reg; 1830 1831 /* Tell ethtool which driver-version-specific regs output we have. 1832 * 1833 * At some point, if we have ethtool doing special formatting of 1834 * this data, it will rely on this version number to know how to 1835 * interpret things. Hence, this needs to be updated if/when the 1836 * diags register table is changed. 1837 */ 1838 regs->version = 1; 1839 1840 /* loop through the diags reg table for what to print */ 1841 ri = 0; 1842 for (i = 0; i40e_reg_list[i].offset != 0; i++) { 1843 for (j = 0; j < i40e_reg_list[i].elements; j++) { 1844 reg = i40e_reg_list[i].offset 1845 + (j * i40e_reg_list[i].stride); 1846 reg_buf[ri++] = rd32(hw, reg); 1847 } 1848 } 1849 1850 } 1851 1852 static int i40e_get_eeprom(struct net_device *netdev, 1853 struct ethtool_eeprom *eeprom, u8 *bytes) 1854 { 1855 struct i40e_netdev_priv *np = netdev_priv(netdev); 1856 struct i40e_hw *hw = &np->vsi->back->hw; 1857 struct i40e_pf *pf = np->vsi->back; 1858 int ret_val = 0, len, offset; 1859 u8 *eeprom_buff; 1860 u16 i, sectors; 1861 bool last; 1862 u32 magic; 1863 1864 #define I40E_NVM_SECTOR_SIZE 4096 1865 if (eeprom->len == 0) 1866 return -EINVAL; 1867 1868 /* check for NVMUpdate access method */ 1869 magic = hw->vendor_id | (hw->device_id << 16); 1870 if (eeprom->magic && eeprom->magic != magic) { 1871 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1872 int errno = 0; 1873 1874 /* make sure it is the right magic for NVMUpdate */ 1875 if ((eeprom->magic >> 16) != hw->device_id) 1876 errno = -EINVAL; 1877 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1878 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1879 errno = -EBUSY; 1880 else 1881 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1882 1883 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1884 dev_info(&pf->pdev->dev, 1885 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1886 ret_val, hw->aq.asq_last_status, errno, 1887 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1888 cmd->offset, cmd->data_size); 1889 1890 return errno; 1891 } 1892 1893 /* normal ethtool get_eeprom support */ 1894 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 1895 1896 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL); 1897 if (!eeprom_buff) 1898 return -ENOMEM; 1899 1900 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); 1901 if (ret_val) { 1902 dev_info(&pf->pdev->dev, 1903 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1904 ret_val, hw->aq.asq_last_status); 1905 goto free_buff; 1906 } 1907 1908 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE; 1909 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0; 1910 len = I40E_NVM_SECTOR_SIZE; 1911 last = false; 1912 for (i = 0; i < sectors; i++) { 1913 if (i == (sectors - 1)) { 1914 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i); 1915 last = true; 1916 } 1917 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i); 1918 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len, 1919 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i), 1920 last, NULL); 1921 if (ret_val && hw->aq.asq_last_status == LIBIE_AQ_RC_EPERM) { 1922 dev_info(&pf->pdev->dev, 1923 "read NVM failed, invalid offset 0x%x\n", 1924 offset); 1925 break; 1926 } else if (ret_val && 1927 hw->aq.asq_last_status == LIBIE_AQ_RC_EACCES) { 1928 dev_info(&pf->pdev->dev, 1929 "read NVM failed, access, offset 0x%x\n", 1930 offset); 1931 break; 1932 } else if (ret_val) { 1933 dev_info(&pf->pdev->dev, 1934 "read NVM failed offset %d err=%d status=0x%x\n", 1935 offset, ret_val, hw->aq.asq_last_status); 1936 break; 1937 } 1938 } 1939 1940 i40e_release_nvm(hw); 1941 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len); 1942 free_buff: 1943 kfree(eeprom_buff); 1944 return ret_val; 1945 } 1946 1947 static int i40e_get_eeprom_len(struct net_device *netdev) 1948 { 1949 struct i40e_netdev_priv *np = netdev_priv(netdev); 1950 struct i40e_hw *hw = &np->vsi->back->hw; 1951 u32 val; 1952 1953 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF 1954 if (hw->mac.type == I40E_MAC_X722) { 1955 val = X722_EEPROM_SCOPE_LIMIT + 1; 1956 return val; 1957 } 1958 val = FIELD_GET(I40E_GLPCI_LBARCTRL_FL_SIZE_MASK, 1959 rd32(hw, I40E_GLPCI_LBARCTRL)); 1960 /* register returns value in power of 2, 64Kbyte chunks. */ 1961 val = (64 * 1024) * BIT(val); 1962 return val; 1963 } 1964 1965 static int i40e_set_eeprom(struct net_device *netdev, 1966 struct ethtool_eeprom *eeprom, u8 *bytes) 1967 { 1968 struct i40e_netdev_priv *np = netdev_priv(netdev); 1969 struct i40e_hw *hw = &np->vsi->back->hw; 1970 struct i40e_pf *pf = np->vsi->back; 1971 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1972 int ret_val = 0; 1973 int errno = 0; 1974 u32 magic; 1975 1976 /* normal ethtool set_eeprom is not supported */ 1977 magic = hw->vendor_id | (hw->device_id << 16); 1978 if (eeprom->magic == magic) 1979 errno = -EOPNOTSUPP; 1980 /* check for NVMUpdate access method */ 1981 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id) 1982 errno = -EINVAL; 1983 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1984 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1985 errno = -EBUSY; 1986 else 1987 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1988 1989 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1990 dev_info(&pf->pdev->dev, 1991 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1992 ret_val, hw->aq.asq_last_status, errno, 1993 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1994 cmd->offset, cmd->data_size); 1995 1996 return errno; 1997 } 1998 1999 static void i40e_get_drvinfo(struct net_device *netdev, 2000 struct ethtool_drvinfo *drvinfo) 2001 { 2002 struct i40e_netdev_priv *np = netdev_priv(netdev); 2003 struct i40e_vsi *vsi = np->vsi; 2004 struct i40e_pf *pf = vsi->back; 2005 2006 strscpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); 2007 i40e_nvm_version_str(&pf->hw, drvinfo->fw_version, 2008 sizeof(drvinfo->fw_version)); 2009 strscpy(drvinfo->bus_info, pci_name(pf->pdev), 2010 sizeof(drvinfo->bus_info)); 2011 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN; 2012 if (pf->hw.pf_id == 0) 2013 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN; 2014 } 2015 2016 static u32 i40e_get_max_num_descriptors(struct i40e_pf *pf) 2017 { 2018 struct i40e_hw *hw = &pf->hw; 2019 2020 switch (hw->mac.type) { 2021 case I40E_MAC_XL710: 2022 return I40E_MAX_NUM_DESCRIPTORS_XL710; 2023 default: 2024 return I40E_MAX_NUM_DESCRIPTORS; 2025 } 2026 } 2027 2028 static void i40e_get_ringparam(struct net_device *netdev, 2029 struct ethtool_ringparam *ring, 2030 struct kernel_ethtool_ringparam *kernel_ring, 2031 struct netlink_ext_ack *extack) 2032 { 2033 struct i40e_netdev_priv *np = netdev_priv(netdev); 2034 struct i40e_pf *pf = np->vsi->back; 2035 struct i40e_vsi *vsi = i40e_pf_get_main_vsi(pf); 2036 2037 ring->rx_max_pending = i40e_get_max_num_descriptors(pf); 2038 ring->tx_max_pending = i40e_get_max_num_descriptors(pf); 2039 ring->rx_mini_max_pending = 0; 2040 ring->rx_jumbo_max_pending = 0; 2041 ring->rx_pending = vsi->rx_rings[0]->count; 2042 ring->tx_pending = vsi->tx_rings[0]->count; 2043 ring->rx_mini_pending = 0; 2044 ring->rx_jumbo_pending = 0; 2045 } 2046 2047 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index) 2048 { 2049 if (i40e_enabled_xdp_vsi(vsi)) { 2050 return index < vsi->num_queue_pairs || 2051 (index >= vsi->alloc_queue_pairs && 2052 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs); 2053 } 2054 2055 return index < vsi->num_queue_pairs; 2056 } 2057 2058 static int i40e_set_ringparam(struct net_device *netdev, 2059 struct ethtool_ringparam *ring, 2060 struct kernel_ethtool_ringparam *kernel_ring, 2061 struct netlink_ext_ack *extack) 2062 { 2063 u32 new_rx_count, new_tx_count, max_num_descriptors; 2064 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; 2065 struct i40e_netdev_priv *np = netdev_priv(netdev); 2066 struct i40e_hw *hw = &np->vsi->back->hw; 2067 struct i40e_vsi *vsi = np->vsi; 2068 struct i40e_pf *pf = vsi->back; 2069 u16 tx_alloc_queue_pairs; 2070 int timeout = 50; 2071 int i, err = 0; 2072 2073 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 2074 return -EINVAL; 2075 2076 max_num_descriptors = i40e_get_max_num_descriptors(pf); 2077 if (ring->tx_pending > max_num_descriptors || 2078 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || 2079 ring->rx_pending > max_num_descriptors || 2080 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { 2081 netdev_info(netdev, 2082 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", 2083 ring->tx_pending, ring->rx_pending, 2084 I40E_MIN_NUM_DESCRIPTORS, max_num_descriptors); 2085 return -EINVAL; 2086 } 2087 2088 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 2089 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 2090 2091 /* if nothing to do return success */ 2092 if ((new_tx_count == vsi->tx_rings[0]->count) && 2093 (new_rx_count == vsi->rx_rings[0]->count)) 2094 return 0; 2095 2096 /* If there is a AF_XDP page pool attached to any of Rx rings, 2097 * disallow changing the number of descriptors -- regardless 2098 * if the netdev is running or not. 2099 */ 2100 if (i40e_xsk_any_rx_ring_enabled(vsi)) 2101 return -EBUSY; 2102 2103 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 2104 timeout--; 2105 if (!timeout) 2106 return -EBUSY; 2107 usleep_range(1000, 2000); 2108 } 2109 2110 if (!netif_running(vsi->netdev)) { 2111 /* simple case - set for the next time the netdev is started */ 2112 for (i = 0; i < vsi->num_queue_pairs; i++) { 2113 vsi->tx_rings[i]->count = new_tx_count; 2114 vsi->rx_rings[i]->count = new_rx_count; 2115 if (i40e_enabled_xdp_vsi(vsi)) 2116 vsi->xdp_rings[i]->count = new_tx_count; 2117 } 2118 vsi->num_tx_desc = new_tx_count; 2119 vsi->num_rx_desc = new_rx_count; 2120 goto done; 2121 } 2122 2123 /* We can't just free everything and then setup again, 2124 * because the ISRs in MSI-X mode get passed pointers 2125 * to the Tx and Rx ring structs. 2126 */ 2127 2128 /* alloc updated Tx and XDP Tx resources */ 2129 tx_alloc_queue_pairs = vsi->alloc_queue_pairs * 2130 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1); 2131 if (new_tx_count != vsi->tx_rings[0]->count) { 2132 netdev_info(netdev, 2133 "Changing Tx descriptor count from %d to %d.\n", 2134 vsi->tx_rings[0]->count, new_tx_count); 2135 tx_rings = kcalloc(tx_alloc_queue_pairs, 2136 sizeof(struct i40e_ring), GFP_KERNEL); 2137 if (!tx_rings) { 2138 err = -ENOMEM; 2139 goto done; 2140 } 2141 2142 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2143 if (!i40e_active_tx_ring_index(vsi, i)) 2144 continue; 2145 2146 tx_rings[i] = *vsi->tx_rings[i]; 2147 tx_rings[i].count = new_tx_count; 2148 /* the desc and bi pointers will be reallocated in the 2149 * setup call 2150 */ 2151 tx_rings[i].desc = NULL; 2152 tx_rings[i].rx_bi = NULL; 2153 err = i40e_setup_tx_descriptors(&tx_rings[i]); 2154 if (err) { 2155 while (i) { 2156 i--; 2157 if (!i40e_active_tx_ring_index(vsi, i)) 2158 continue; 2159 i40e_free_tx_resources(&tx_rings[i]); 2160 } 2161 kfree(tx_rings); 2162 tx_rings = NULL; 2163 2164 goto done; 2165 } 2166 } 2167 } 2168 2169 /* alloc updated Rx resources */ 2170 if (new_rx_count != vsi->rx_rings[0]->count) { 2171 netdev_info(netdev, 2172 "Changing Rx descriptor count from %d to %d\n", 2173 vsi->rx_rings[0]->count, new_rx_count); 2174 rx_rings = kcalloc(vsi->alloc_queue_pairs, 2175 sizeof(struct i40e_ring), GFP_KERNEL); 2176 if (!rx_rings) { 2177 err = -ENOMEM; 2178 goto free_tx; 2179 } 2180 2181 for (i = 0; i < vsi->num_queue_pairs; i++) { 2182 u16 unused; 2183 2184 /* clone ring and setup updated count */ 2185 rx_rings[i] = *vsi->rx_rings[i]; 2186 rx_rings[i].count = new_rx_count; 2187 /* the desc and bi pointers will be reallocated in the 2188 * setup call 2189 */ 2190 rx_rings[i].desc = NULL; 2191 rx_rings[i].rx_bi = NULL; 2192 /* Clear cloned XDP RX-queue info before setup call */ 2193 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq)); 2194 /* this is to allow wr32 to have something to write to 2195 * during early allocation of Rx buffers 2196 */ 2197 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS; 2198 err = i40e_setup_rx_descriptors(&rx_rings[i]); 2199 if (err) 2200 goto rx_unwind; 2201 2202 /* now allocate the Rx buffers to make sure the OS 2203 * has enough memory, any failure here means abort 2204 */ 2205 unused = I40E_DESC_UNUSED(&rx_rings[i]); 2206 err = i40e_alloc_rx_buffers(&rx_rings[i], unused); 2207 rx_unwind: 2208 if (err) { 2209 do { 2210 i40e_free_rx_resources(&rx_rings[i]); 2211 } while (i--); 2212 kfree(rx_rings); 2213 rx_rings = NULL; 2214 2215 goto free_tx; 2216 } 2217 } 2218 } 2219 2220 /* Bring interface down, copy in the new ring info, 2221 * then restore the interface 2222 */ 2223 i40e_down(vsi); 2224 2225 if (tx_rings) { 2226 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2227 if (i40e_active_tx_ring_index(vsi, i)) { 2228 i40e_free_tx_resources(vsi->tx_rings[i]); 2229 *vsi->tx_rings[i] = tx_rings[i]; 2230 } 2231 } 2232 kfree(tx_rings); 2233 tx_rings = NULL; 2234 } 2235 2236 if (rx_rings) { 2237 for (i = 0; i < vsi->num_queue_pairs; i++) { 2238 i40e_free_rx_resources(vsi->rx_rings[i]); 2239 /* get the real tail offset */ 2240 rx_rings[i].tail = vsi->rx_rings[i]->tail; 2241 /* this is to fake out the allocation routine 2242 * into thinking it has to realloc everything 2243 * but the recycling logic will let us re-use 2244 * the buffers allocated above 2245 */ 2246 rx_rings[i].next_to_use = 0; 2247 rx_rings[i].next_to_clean = 0; 2248 rx_rings[i].next_to_alloc = 0; 2249 /* do a struct copy */ 2250 *vsi->rx_rings[i] = rx_rings[i]; 2251 } 2252 kfree(rx_rings); 2253 rx_rings = NULL; 2254 } 2255 2256 vsi->num_tx_desc = new_tx_count; 2257 vsi->num_rx_desc = new_rx_count; 2258 i40e_up(vsi); 2259 2260 free_tx: 2261 /* error cleanup if the Rx allocations failed after getting Tx */ 2262 if (tx_rings) { 2263 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2264 if (i40e_active_tx_ring_index(vsi, i)) 2265 i40e_free_tx_resources(vsi->tx_rings[i]); 2266 } 2267 kfree(tx_rings); 2268 tx_rings = NULL; 2269 } 2270 2271 done: 2272 clear_bit(__I40E_CONFIG_BUSY, pf->state); 2273 2274 return err; 2275 } 2276 2277 /** 2278 * i40e_get_stats_count - return the stats count for a device 2279 * @netdev: the netdev to return the count for 2280 * 2281 * Returns the total number of statistics for this netdev. Note that even 2282 * though this is a function, it is required that the count for a specific 2283 * netdev must never change. Basing the count on static values such as the 2284 * maximum number of queues or the device type is ok. However, the API for 2285 * obtaining stats is *not* safe against changes based on non-static 2286 * values such as the *current* number of queues, or runtime flags. 2287 * 2288 * If a statistic is not always enabled, return it as part of the count 2289 * anyways, always return its string, and report its value as zero. 2290 **/ 2291 static int i40e_get_stats_count(struct net_device *netdev) 2292 { 2293 struct i40e_netdev_priv *np = netdev_priv(netdev); 2294 struct i40e_vsi *vsi = np->vsi; 2295 struct i40e_pf *pf = vsi->back; 2296 int stats_len; 2297 2298 if (vsi->type == I40E_VSI_MAIN && pf->hw.partition_id == 1) 2299 stats_len = I40E_PF_STATS_LEN; 2300 else 2301 stats_len = I40E_VSI_STATS_LEN; 2302 2303 /* The number of stats reported for a given net_device must remain 2304 * constant throughout the life of that device. 2305 * 2306 * This is because the API for obtaining the size, strings, and stats 2307 * is spread out over three separate ethtool ioctls. There is no safe 2308 * way to lock the number of stats across these calls, so we must 2309 * assume that they will never change. 2310 * 2311 * Due to this, we report the maximum number of queues, even if not 2312 * every queue is currently configured. Since we always allocate 2313 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This 2314 * works because the num_tx_queues is set at device creation and never 2315 * changes. 2316 */ 2317 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues; 2318 2319 return stats_len; 2320 } 2321 2322 static int i40e_get_sset_count(struct net_device *netdev, int sset) 2323 { 2324 struct i40e_netdev_priv *np = netdev_priv(netdev); 2325 struct i40e_vsi *vsi = np->vsi; 2326 struct i40e_pf *pf = vsi->back; 2327 2328 switch (sset) { 2329 case ETH_SS_TEST: 2330 return I40E_TEST_LEN; 2331 case ETH_SS_STATS: 2332 return i40e_get_stats_count(netdev); 2333 case ETH_SS_PRIV_FLAGS: 2334 return I40E_PRIV_FLAGS_STR_LEN + 2335 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0); 2336 default: 2337 return -EOPNOTSUPP; 2338 } 2339 } 2340 2341 /** 2342 * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure 2343 * @tc: the TC statistics in VEB structure (veb->tc_stats) 2344 * @i: the index of traffic class in (veb->tc_stats) structure to copy 2345 * 2346 * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to 2347 * one dimensional structure i40e_cp_veb_tc_stats. 2348 * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC 2349 * statistics for the given TC. 2350 **/ 2351 static struct i40e_cp_veb_tc_stats 2352 i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i) 2353 { 2354 struct i40e_cp_veb_tc_stats veb_tc = { 2355 .tc_rx_packets = tc->tc_rx_packets[i], 2356 .tc_rx_bytes = tc->tc_rx_bytes[i], 2357 .tc_tx_packets = tc->tc_tx_packets[i], 2358 .tc_tx_bytes = tc->tc_tx_bytes[i], 2359 }; 2360 2361 return veb_tc; 2362 } 2363 2364 /** 2365 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure 2366 * @pf: the PF device structure 2367 * @i: the priority value to copy 2368 * 2369 * The PFC stats are found as arrays in pf->stats, which is not easy to pass 2370 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure 2371 * of the PFC stats for the given priority. 2372 **/ 2373 static inline struct i40e_pfc_stats 2374 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i) 2375 { 2376 #define I40E_GET_PFC_STAT(stat, priority) \ 2377 .stat = pf->stats.stat[priority] 2378 2379 struct i40e_pfc_stats pfc = { 2380 I40E_GET_PFC_STAT(priority_xon_rx, i), 2381 I40E_GET_PFC_STAT(priority_xoff_rx, i), 2382 I40E_GET_PFC_STAT(priority_xon_tx, i), 2383 I40E_GET_PFC_STAT(priority_xoff_tx, i), 2384 I40E_GET_PFC_STAT(priority_xon_2_xoff, i), 2385 }; 2386 return pfc; 2387 } 2388 2389 /** 2390 * i40e_get_ethtool_stats - copy stat values into supplied buffer 2391 * @netdev: the netdev to collect stats for 2392 * @stats: ethtool stats command structure 2393 * @data: ethtool supplied buffer 2394 * 2395 * Copy the stats values for this netdev into the buffer. Expects data to be 2396 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all 2397 * statistics must be copied in a static order, and the count must not change 2398 * for a given netdev. See i40e_get_stats_count for more details. 2399 * 2400 * If a statistic is not currently valid (such as a disabled queue), this 2401 * function reports its value as zero. 2402 **/ 2403 static void i40e_get_ethtool_stats(struct net_device *netdev, 2404 struct ethtool_stats *stats, u64 *data) 2405 { 2406 struct i40e_netdev_priv *np = netdev_priv(netdev); 2407 struct i40e_vsi *vsi = np->vsi; 2408 struct i40e_pf *pf = vsi->back; 2409 struct i40e_veb *veb = NULL; 2410 unsigned int i; 2411 bool veb_stats; 2412 u64 *p = data; 2413 2414 i40e_update_stats(vsi); 2415 2416 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi), 2417 i40e_gstrings_net_stats); 2418 2419 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats); 2420 2421 rcu_read_lock(); 2422 for (i = 0; i < netdev->num_tx_queues; i++) { 2423 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i])); 2424 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i])); 2425 } 2426 rcu_read_unlock(); 2427 2428 if (vsi->type != I40E_VSI_MAIN || pf->hw.partition_id != 1) 2429 goto check_data_pointer; 2430 2431 veb = i40e_pf_get_main_veb(pf); 2432 veb_stats = veb && test_bit(I40E_FLAG_VEB_STATS_ENA, pf->flags); 2433 2434 if (veb_stats) 2435 i40e_update_veb_stats(veb); 2436 2437 /* If veb stats aren't enabled, pass NULL instead of the veb so that 2438 * we initialize stats to zero and update the data pointer 2439 * intelligently 2440 */ 2441 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL, 2442 i40e_gstrings_veb_stats); 2443 2444 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2445 if (veb_stats) { 2446 struct i40e_cp_veb_tc_stats veb_tc = 2447 i40e_get_veb_tc_stats(&veb->tc_stats, i); 2448 2449 i40e_add_ethtool_stats(&data, &veb_tc, 2450 i40e_gstrings_veb_tc_stats); 2451 } else { 2452 i40e_add_ethtool_stats(&data, NULL, 2453 i40e_gstrings_veb_tc_stats); 2454 } 2455 2456 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats); 2457 2458 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 2459 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i); 2460 2461 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats); 2462 } 2463 2464 check_data_pointer: 2465 WARN_ONCE(data - p != i40e_get_stats_count(netdev), 2466 "ethtool stats count mismatch!"); 2467 } 2468 2469 /** 2470 * i40e_get_stat_strings - copy stat strings into supplied buffer 2471 * @netdev: the netdev to collect strings for 2472 * @data: supplied buffer to copy strings into 2473 * 2474 * Copy the strings related to stats for this netdev. Expects data to be 2475 * pre-allocated with the size reported by i40e_get_stats_count. Note that the 2476 * strings must be copied in a static order and the total count must not 2477 * change for a given netdev. See i40e_get_stats_count for more details. 2478 **/ 2479 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data) 2480 { 2481 struct i40e_netdev_priv *np = netdev_priv(netdev); 2482 struct i40e_vsi *vsi = np->vsi; 2483 struct i40e_pf *pf = vsi->back; 2484 unsigned int i; 2485 u8 *p = data; 2486 2487 i40e_add_stat_strings(&data, i40e_gstrings_net_stats); 2488 2489 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats); 2490 2491 for (i = 0; i < netdev->num_tx_queues; i++) { 2492 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2493 "tx", i); 2494 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2495 "rx", i); 2496 } 2497 2498 if (vsi->type != I40E_VSI_MAIN || pf->hw.partition_id != 1) 2499 goto check_data_pointer; 2500 2501 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats); 2502 2503 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2504 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i); 2505 2506 i40e_add_stat_strings(&data, i40e_gstrings_stats); 2507 2508 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) 2509 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i); 2510 2511 check_data_pointer: 2512 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN, 2513 "stat strings count mismatch!"); 2514 } 2515 2516 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data) 2517 { 2518 struct i40e_netdev_priv *np = netdev_priv(netdev); 2519 struct i40e_vsi *vsi = np->vsi; 2520 struct i40e_pf *pf = vsi->back; 2521 unsigned int i; 2522 u8 *p = data; 2523 2524 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) 2525 ethtool_puts(&p, i40e_gstrings_priv_flags[i].flag_string); 2526 if (pf->hw.pf_id != 0) 2527 return; 2528 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) 2529 ethtool_puts(&p, i40e_gl_gstrings_priv_flags[i].flag_string); 2530 } 2531 2532 static void i40e_get_strings(struct net_device *netdev, u32 stringset, 2533 u8 *data) 2534 { 2535 switch (stringset) { 2536 case ETH_SS_TEST: 2537 memcpy(data, i40e_gstrings_test, 2538 I40E_TEST_LEN * ETH_GSTRING_LEN); 2539 break; 2540 case ETH_SS_STATS: 2541 i40e_get_stat_strings(netdev, data); 2542 break; 2543 case ETH_SS_PRIV_FLAGS: 2544 i40e_get_priv_flag_strings(netdev, data); 2545 break; 2546 default: 2547 break; 2548 } 2549 } 2550 2551 static int i40e_get_ts_info(struct net_device *dev, 2552 struct kernel_ethtool_ts_info *info) 2553 { 2554 struct i40e_pf *pf = i40e_netdev_to_pf(dev); 2555 2556 /* only report HW timestamping if PTP is enabled */ 2557 if (!test_bit(I40E_FLAG_PTP_ENA, pf->flags)) 2558 return ethtool_op_get_ts_info(dev, info); 2559 2560 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 2561 SOF_TIMESTAMPING_TX_HARDWARE | 2562 SOF_TIMESTAMPING_RX_HARDWARE | 2563 SOF_TIMESTAMPING_RAW_HARDWARE; 2564 2565 if (pf->ptp_clock) 2566 info->phc_index = ptp_clock_index(pf->ptp_clock); 2567 2568 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 2569 2570 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | 2571 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | 2572 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | 2573 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ); 2574 2575 if (test_bit(I40E_HW_CAP_PTP_L4, pf->hw.caps)) 2576 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | 2577 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | 2578 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) | 2579 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | 2580 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) | 2581 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | 2582 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | 2583 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ); 2584 2585 return 0; 2586 } 2587 2588 static u64 i40e_link_test(struct net_device *netdev, u64 *data) 2589 { 2590 struct i40e_netdev_priv *np = netdev_priv(netdev); 2591 struct i40e_pf *pf = np->vsi->back; 2592 bool link_up = false; 2593 int status; 2594 2595 netif_info(pf, hw, netdev, "link test\n"); 2596 status = i40e_get_link_status(&pf->hw, &link_up); 2597 if (status) { 2598 netif_err(pf, drv, netdev, "link query timed out, please retry test\n"); 2599 *data = 1; 2600 return *data; 2601 } 2602 2603 if (link_up) 2604 *data = 0; 2605 else 2606 *data = 1; 2607 2608 return *data; 2609 } 2610 2611 static u64 i40e_reg_test(struct net_device *netdev, u64 *data) 2612 { 2613 struct i40e_netdev_priv *np = netdev_priv(netdev); 2614 struct i40e_pf *pf = np->vsi->back; 2615 2616 netif_info(pf, hw, netdev, "register test\n"); 2617 *data = i40e_diag_reg_test(&pf->hw); 2618 2619 return *data; 2620 } 2621 2622 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data) 2623 { 2624 struct i40e_netdev_priv *np = netdev_priv(netdev); 2625 struct i40e_pf *pf = np->vsi->back; 2626 2627 netif_info(pf, hw, netdev, "eeprom test\n"); 2628 *data = i40e_diag_eeprom_test(&pf->hw); 2629 2630 /* forcebly clear the NVM Update state machine */ 2631 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; 2632 2633 return *data; 2634 } 2635 2636 static u64 i40e_intr_test(struct net_device *netdev, u64 *data) 2637 { 2638 struct i40e_netdev_priv *np = netdev_priv(netdev); 2639 struct i40e_pf *pf = np->vsi->back; 2640 u16 swc_old = pf->sw_int_count; 2641 2642 netif_info(pf, hw, netdev, "interrupt test\n"); 2643 wr32(&pf->hw, I40E_PFINT_DYN_CTL0, 2644 (I40E_PFINT_DYN_CTL0_INTENA_MASK | 2645 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | 2646 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | 2647 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | 2648 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); 2649 usleep_range(1000, 2000); 2650 *data = (swc_old == pf->sw_int_count); 2651 2652 return *data; 2653 } 2654 2655 static inline bool i40e_active_vfs(struct i40e_pf *pf) 2656 { 2657 struct i40e_vf *vfs = pf->vf; 2658 int i; 2659 2660 for (i = 0; i < pf->num_alloc_vfs; i++) 2661 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states)) 2662 return true; 2663 return false; 2664 } 2665 2666 static inline bool i40e_active_vmdqs(struct i40e_pf *pf) 2667 { 2668 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2); 2669 } 2670 2671 static void i40e_diag_test(struct net_device *netdev, 2672 struct ethtool_test *eth_test, u64 *data) 2673 { 2674 struct i40e_netdev_priv *np = netdev_priv(netdev); 2675 bool if_running = netif_running(netdev); 2676 struct i40e_pf *pf = np->vsi->back; 2677 2678 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 2679 /* Offline tests */ 2680 netif_info(pf, drv, netdev, "offline testing starting\n"); 2681 2682 set_bit(__I40E_TESTING, pf->state); 2683 2684 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 2685 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) { 2686 dev_warn(&pf->pdev->dev, 2687 "Cannot start offline testing when PF is in reset state.\n"); 2688 goto skip_ol_tests; 2689 } 2690 2691 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) { 2692 dev_warn(&pf->pdev->dev, 2693 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 2694 goto skip_ol_tests; 2695 } 2696 2697 /* If the device is online then take it offline */ 2698 if (if_running) 2699 /* indicate we're in test mode */ 2700 i40e_close(netdev); 2701 else 2702 /* This reset does not affect link - if it is 2703 * changed to a type of reset that does affect 2704 * link then the following link test would have 2705 * to be moved to before the reset 2706 */ 2707 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2708 2709 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2710 eth_test->flags |= ETH_TEST_FL_FAILED; 2711 2712 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) 2713 eth_test->flags |= ETH_TEST_FL_FAILED; 2714 2715 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) 2716 eth_test->flags |= ETH_TEST_FL_FAILED; 2717 2718 /* run reg test last, a reset is required after it */ 2719 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) 2720 eth_test->flags |= ETH_TEST_FL_FAILED; 2721 2722 clear_bit(__I40E_TESTING, pf->state); 2723 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2724 2725 if (if_running) 2726 i40e_open(netdev); 2727 } else { 2728 /* Online tests */ 2729 netif_info(pf, drv, netdev, "online testing starting\n"); 2730 2731 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2732 eth_test->flags |= ETH_TEST_FL_FAILED; 2733 2734 /* Offline only tests, not run in online; pass by default */ 2735 data[I40E_ETH_TEST_REG] = 0; 2736 data[I40E_ETH_TEST_EEPROM] = 0; 2737 data[I40E_ETH_TEST_INTR] = 0; 2738 } 2739 2740 netif_info(pf, drv, netdev, "testing finished\n"); 2741 return; 2742 2743 skip_ol_tests: 2744 data[I40E_ETH_TEST_REG] = 1; 2745 data[I40E_ETH_TEST_EEPROM] = 1; 2746 data[I40E_ETH_TEST_INTR] = 1; 2747 data[I40E_ETH_TEST_LINK] = 1; 2748 eth_test->flags |= ETH_TEST_FL_FAILED; 2749 clear_bit(__I40E_TESTING, pf->state); 2750 netif_info(pf, drv, netdev, "testing failed\n"); 2751 } 2752 2753 static void i40e_get_link_ext_stats(struct net_device *netdev, 2754 struct ethtool_link_ext_stats *stats) 2755 { 2756 struct i40e_netdev_priv *np = netdev_priv(netdev); 2757 struct i40e_pf *pf = np->vsi->back; 2758 2759 stats->link_down_events = pf->link_down_events; 2760 } 2761 2762 static void i40e_get_wol(struct net_device *netdev, 2763 struct ethtool_wolinfo *wol) 2764 { 2765 struct i40e_netdev_priv *np = netdev_priv(netdev); 2766 struct i40e_pf *pf = np->vsi->back; 2767 struct i40e_hw *hw = &pf->hw; 2768 u16 wol_nvm_bits; 2769 2770 /* NVM bit on means WoL disabled for the port */ 2771 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2772 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) { 2773 wol->supported = 0; 2774 wol->wolopts = 0; 2775 } else { 2776 wol->supported = WAKE_MAGIC; 2777 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); 2778 } 2779 } 2780 2781 /** 2782 * i40e_set_wol - set the WakeOnLAN configuration 2783 * @netdev: the netdev in question 2784 * @wol: the ethtool WoL setting data 2785 **/ 2786 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 2787 { 2788 struct i40e_netdev_priv *np = netdev_priv(netdev); 2789 struct i40e_pf *pf = np->vsi->back; 2790 struct i40e_vsi *vsi = np->vsi; 2791 struct i40e_hw *hw = &pf->hw; 2792 u16 wol_nvm_bits; 2793 2794 /* WoL not supported if this isn't the controlling PF on the port */ 2795 if (hw->partition_id != 1) { 2796 i40e_partition_setting_complaint(pf); 2797 return -EOPNOTSUPP; 2798 } 2799 2800 if (vsi->type != I40E_VSI_MAIN) 2801 return -EOPNOTSUPP; 2802 2803 /* NVM bit on means WoL disabled for the port */ 2804 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2805 if (BIT(hw->port) & wol_nvm_bits) 2806 return -EOPNOTSUPP; 2807 2808 /* only magic packet is supported */ 2809 if (wol->wolopts & ~WAKE_MAGIC) 2810 return -EOPNOTSUPP; 2811 2812 /* is this a new value? */ 2813 if (pf->wol_en != !!wol->wolopts) { 2814 pf->wol_en = !!wol->wolopts; 2815 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); 2816 } 2817 2818 return 0; 2819 } 2820 2821 static int i40e_set_phys_id(struct net_device *netdev, 2822 enum ethtool_phys_id_state state) 2823 { 2824 struct i40e_netdev_priv *np = netdev_priv(netdev); 2825 struct i40e_pf *pf = np->vsi->back; 2826 struct i40e_hw *hw = &pf->hw; 2827 int blink_freq = 2; 2828 u16 temp_status; 2829 int ret = 0; 2830 2831 switch (state) { 2832 case ETHTOOL_ID_ACTIVE: 2833 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) { 2834 pf->led_status = i40e_led_get(hw); 2835 } else { 2836 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) 2837 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, 2838 NULL); 2839 ret = i40e_led_get_phy(hw, &temp_status, 2840 &pf->phy_led_val); 2841 pf->led_status = temp_status; 2842 } 2843 return blink_freq; 2844 case ETHTOOL_ID_ON: 2845 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) 2846 i40e_led_set(hw, 0xf, false); 2847 else 2848 ret = i40e_led_set_phy(hw, true, pf->led_status, 0); 2849 break; 2850 case ETHTOOL_ID_OFF: 2851 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) 2852 i40e_led_set(hw, 0x0, false); 2853 else 2854 ret = i40e_led_set_phy(hw, false, pf->led_status, 0); 2855 break; 2856 case ETHTOOL_ID_INACTIVE: 2857 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) { 2858 i40e_led_set(hw, pf->led_status, false); 2859 } else { 2860 ret = i40e_led_set_phy(hw, false, pf->led_status, 2861 (pf->phy_led_val | 2862 I40E_PHY_LED_MODE_ORIG)); 2863 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) 2864 i40e_aq_set_phy_debug(hw, 0, NULL); 2865 } 2866 break; 2867 default: 2868 break; 2869 } 2870 if (ret) 2871 return -ENOENT; 2872 else 2873 return 0; 2874 } 2875 2876 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt 2877 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also 2878 * 125us (8000 interrupts per second) == ITR(62) 2879 */ 2880 2881 /** 2882 * __i40e_get_coalesce - get per-queue coalesce settings 2883 * @netdev: the netdev to check 2884 * @ec: ethtool coalesce data structure 2885 * @queue: which queue to pick 2886 * 2887 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs 2888 * are per queue. If queue is <0 then we default to queue 0 as the 2889 * representative value. 2890 **/ 2891 static int __i40e_get_coalesce(struct net_device *netdev, 2892 struct ethtool_coalesce *ec, 2893 int queue) 2894 { 2895 struct i40e_netdev_priv *np = netdev_priv(netdev); 2896 struct i40e_ring *rx_ring, *tx_ring; 2897 struct i40e_vsi *vsi = np->vsi; 2898 2899 ec->tx_max_coalesced_frames_irq = vsi->work_limit; 2900 2901 /* rx and tx usecs has per queue value. If user doesn't specify the 2902 * queue, return queue 0's value to represent. 2903 */ 2904 if (queue < 0) 2905 queue = 0; 2906 else if (queue >= vsi->num_queue_pairs) 2907 return -EINVAL; 2908 2909 rx_ring = vsi->rx_rings[queue]; 2910 tx_ring = vsi->tx_rings[queue]; 2911 2912 if (ITR_IS_DYNAMIC(rx_ring->itr_setting)) 2913 ec->use_adaptive_rx_coalesce = 1; 2914 2915 if (ITR_IS_DYNAMIC(tx_ring->itr_setting)) 2916 ec->use_adaptive_tx_coalesce = 1; 2917 2918 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2919 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2920 2921 /* we use the _usecs_high to store/set the interrupt rate limit 2922 * that the hardware supports, that almost but not quite 2923 * fits the original intent of the ethtool variable, 2924 * the rx_coalesce_usecs_high limits total interrupts 2925 * per second from both tx/rx sources. 2926 */ 2927 ec->rx_coalesce_usecs_high = vsi->int_rate_limit; 2928 ec->tx_coalesce_usecs_high = vsi->int_rate_limit; 2929 2930 return 0; 2931 } 2932 2933 /** 2934 * i40e_get_coalesce - get a netdev's coalesce settings 2935 * @netdev: the netdev to check 2936 * @ec: ethtool coalesce data structure 2937 * @kernel_coal: ethtool CQE mode setting structure 2938 * @extack: extack for reporting error messages 2939 * 2940 * Gets the coalesce settings for a particular netdev. Note that if user has 2941 * modified per-queue settings, this only guarantees to represent queue 0. See 2942 * __i40e_get_coalesce for more details. 2943 **/ 2944 static int i40e_get_coalesce(struct net_device *netdev, 2945 struct ethtool_coalesce *ec, 2946 struct kernel_ethtool_coalesce *kernel_coal, 2947 struct netlink_ext_ack *extack) 2948 { 2949 return __i40e_get_coalesce(netdev, ec, -1); 2950 } 2951 2952 /** 2953 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue 2954 * @netdev: netdev structure 2955 * @ec: ethtool's coalesce settings 2956 * @queue: the particular queue to read 2957 * 2958 * Will read a specific queue's coalesce settings 2959 **/ 2960 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue, 2961 struct ethtool_coalesce *ec) 2962 { 2963 return __i40e_get_coalesce(netdev, ec, queue); 2964 } 2965 2966 /** 2967 * i40e_set_itr_per_queue - set ITR values for specific queue 2968 * @vsi: the VSI to set values for 2969 * @ec: coalesce settings from ethtool 2970 * @queue: the queue to modify 2971 * 2972 * Change the ITR settings for a specific queue. 2973 **/ 2974 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi, 2975 struct ethtool_coalesce *ec, 2976 int queue) 2977 { 2978 struct i40e_ring *rx_ring = vsi->rx_rings[queue]; 2979 struct i40e_ring *tx_ring = vsi->tx_rings[queue]; 2980 struct i40e_pf *pf = vsi->back; 2981 struct i40e_hw *hw = &pf->hw; 2982 struct i40e_q_vector *q_vector; 2983 u16 intrl; 2984 2985 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit); 2986 2987 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs); 2988 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs); 2989 2990 if (ec->use_adaptive_rx_coalesce) 2991 rx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2992 else 2993 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2994 2995 if (ec->use_adaptive_tx_coalesce) 2996 tx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2997 else 2998 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2999 3000 q_vector = rx_ring->q_vector; 3001 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting); 3002 3003 q_vector = tx_ring->q_vector; 3004 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting); 3005 3006 /* The interrupt handler itself will take care of programming 3007 * the Tx and Rx ITR values based on the values we have entered 3008 * into the q_vector, no need to write the values now. 3009 */ 3010 3011 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl); 3012 i40e_flush(hw); 3013 } 3014 3015 /** 3016 * __i40e_set_coalesce - set coalesce settings for particular queue 3017 * @netdev: the netdev to change 3018 * @ec: ethtool coalesce settings 3019 * @queue: the queue to change 3020 * 3021 * Sets the coalesce settings for a particular queue. 3022 **/ 3023 static int __i40e_set_coalesce(struct net_device *netdev, 3024 struct ethtool_coalesce *ec, 3025 int queue) 3026 { 3027 struct i40e_netdev_priv *np = netdev_priv(netdev); 3028 u16 intrl_reg, cur_rx_itr, cur_tx_itr; 3029 struct i40e_vsi *vsi = np->vsi; 3030 struct i40e_pf *pf = vsi->back; 3031 int i; 3032 3033 if (ec->tx_max_coalesced_frames_irq) 3034 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 3035 3036 if (queue < 0) { 3037 cur_rx_itr = vsi->rx_rings[0]->itr_setting; 3038 cur_tx_itr = vsi->tx_rings[0]->itr_setting; 3039 } else if (queue < vsi->num_queue_pairs) { 3040 cur_rx_itr = vsi->rx_rings[queue]->itr_setting; 3041 cur_tx_itr = vsi->tx_rings[queue]->itr_setting; 3042 } else { 3043 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n", 3044 vsi->num_queue_pairs - 1); 3045 return -EINVAL; 3046 } 3047 3048 cur_tx_itr &= ~I40E_ITR_DYNAMIC; 3049 cur_rx_itr &= ~I40E_ITR_DYNAMIC; 3050 3051 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */ 3052 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) { 3053 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n"); 3054 return -EINVAL; 3055 } 3056 3057 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) { 3058 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n", 3059 INTRL_REG_TO_USEC(I40E_MAX_INTRL)); 3060 return -EINVAL; 3061 } 3062 3063 if (ec->rx_coalesce_usecs != cur_rx_itr && 3064 ec->use_adaptive_rx_coalesce) { 3065 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n"); 3066 return -EINVAL; 3067 } 3068 3069 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) { 3070 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 3071 return -EINVAL; 3072 } 3073 3074 if (ec->tx_coalesce_usecs != cur_tx_itr && 3075 ec->use_adaptive_tx_coalesce) { 3076 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n"); 3077 return -EINVAL; 3078 } 3079 3080 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) { 3081 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n"); 3082 return -EINVAL; 3083 } 3084 3085 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr) 3086 ec->rx_coalesce_usecs = I40E_MIN_ITR; 3087 3088 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr) 3089 ec->tx_coalesce_usecs = I40E_MIN_ITR; 3090 3091 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high); 3092 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg); 3093 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) { 3094 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n", 3095 vsi->int_rate_limit); 3096 } 3097 3098 /* rx and tx usecs has per queue value. If user doesn't specify the 3099 * queue, apply to all queues. 3100 */ 3101 if (queue < 0) { 3102 for (i = 0; i < vsi->num_queue_pairs; i++) 3103 i40e_set_itr_per_queue(vsi, ec, i); 3104 } else { 3105 i40e_set_itr_per_queue(vsi, ec, queue); 3106 } 3107 3108 return 0; 3109 } 3110 3111 /** 3112 * i40e_set_coalesce - set coalesce settings for every queue on the netdev 3113 * @netdev: the netdev to change 3114 * @ec: ethtool coalesce settings 3115 * @kernel_coal: ethtool CQE mode setting structure 3116 * @extack: extack for reporting error messages 3117 * 3118 * This will set each queue to the same coalesce settings. 3119 **/ 3120 static int i40e_set_coalesce(struct net_device *netdev, 3121 struct ethtool_coalesce *ec, 3122 struct kernel_ethtool_coalesce *kernel_coal, 3123 struct netlink_ext_ack *extack) 3124 { 3125 return __i40e_set_coalesce(netdev, ec, -1); 3126 } 3127 3128 /** 3129 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings 3130 * @netdev: the netdev to change 3131 * @ec: ethtool's coalesce settings 3132 * @queue: the queue to change 3133 * 3134 * Sets the specified queue's coalesce settings. 3135 **/ 3136 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue, 3137 struct ethtool_coalesce *ec) 3138 { 3139 return __i40e_set_coalesce(netdev, ec, queue); 3140 } 3141 3142 static int i40e_get_rxfh_fields(struct net_device *netdev, 3143 struct ethtool_rxfh_fields *cmd) 3144 { 3145 struct i40e_netdev_priv *np = netdev_priv(netdev); 3146 struct i40e_vsi *vsi = np->vsi; 3147 struct i40e_pf *pf = vsi->back; 3148 struct i40e_hw *hw = &pf->hw; 3149 u8 flow_pctype = 0; 3150 u64 i_set = 0; 3151 3152 cmd->data = 0; 3153 3154 switch (cmd->flow_type) { 3155 case TCP_V4_FLOW: 3156 flow_pctype = LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP; 3157 break; 3158 case UDP_V4_FLOW: 3159 flow_pctype = LIBIE_FILTER_PCTYPE_NONF_IPV4_UDP; 3160 break; 3161 case TCP_V6_FLOW: 3162 flow_pctype = LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP; 3163 break; 3164 case UDP_V6_FLOW: 3165 flow_pctype = LIBIE_FILTER_PCTYPE_NONF_IPV6_UDP; 3166 break; 3167 case SCTP_V4_FLOW: 3168 case AH_ESP_V4_FLOW: 3169 case AH_V4_FLOW: 3170 case ESP_V4_FLOW: 3171 case IPV4_FLOW: 3172 case SCTP_V6_FLOW: 3173 case AH_ESP_V6_FLOW: 3174 case AH_V6_FLOW: 3175 case ESP_V6_FLOW: 3176 case IPV6_FLOW: 3177 /* Default is src/dest for IP, no matter the L4 hashing */ 3178 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 3179 break; 3180 default: 3181 return -EINVAL; 3182 } 3183 3184 /* Read flow based hash input set register */ 3185 if (flow_pctype) { 3186 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3187 flow_pctype)) | 3188 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3189 flow_pctype)) << 32); 3190 } 3191 3192 /* Process bits of hash input set */ 3193 if (i_set) { 3194 if (i_set & I40E_L4_SRC_MASK) 3195 cmd->data |= RXH_L4_B_0_1; 3196 if (i_set & I40E_L4_DST_MASK) 3197 cmd->data |= RXH_L4_B_2_3; 3198 3199 if (cmd->flow_type == TCP_V4_FLOW || 3200 cmd->flow_type == UDP_V4_FLOW) { 3201 if (hw->mac.type == I40E_MAC_X722) { 3202 if (i_set & I40E_X722_L3_SRC_MASK) 3203 cmd->data |= RXH_IP_SRC; 3204 if (i_set & I40E_X722_L3_DST_MASK) 3205 cmd->data |= RXH_IP_DST; 3206 } else { 3207 if (i_set & I40E_L3_SRC_MASK) 3208 cmd->data |= RXH_IP_SRC; 3209 if (i_set & I40E_L3_DST_MASK) 3210 cmd->data |= RXH_IP_DST; 3211 } 3212 } else if (cmd->flow_type == TCP_V6_FLOW || 3213 cmd->flow_type == UDP_V6_FLOW) { 3214 if (i_set & I40E_L3_V6_SRC_MASK) 3215 cmd->data |= RXH_IP_SRC; 3216 if (i_set & I40E_L3_V6_DST_MASK) 3217 cmd->data |= RXH_IP_DST; 3218 } 3219 } 3220 3221 return 0; 3222 } 3223 3224 /** 3225 * i40e_check_mask - Check whether a mask field is set 3226 * @mask: the full mask value 3227 * @field: mask of the field to check 3228 * 3229 * If the given mask is fully set, return positive value. If the mask for the 3230 * field is fully unset, return zero. Otherwise return a negative error code. 3231 **/ 3232 static int i40e_check_mask(u64 mask, u64 field) 3233 { 3234 u64 value = mask & field; 3235 3236 if (value == field) 3237 return 1; 3238 else if (!value) 3239 return 0; 3240 else 3241 return -1; 3242 } 3243 3244 /** 3245 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data 3246 * @fsp: pointer to rx flow specification 3247 * @data: pointer to userdef data structure for storage 3248 * 3249 * Read the user-defined data and deconstruct the value into a structure. No 3250 * other code should read the user-defined data, so as to ensure that every 3251 * place consistently reads the value correctly. 3252 * 3253 * The user-defined field is a 64bit Big Endian format value, which we 3254 * deconstruct by reading bits or bit fields from it. Single bit flags shall 3255 * be defined starting from the highest bits, while small bit field values 3256 * shall be defined starting from the lowest bits. 3257 * 3258 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid 3259 * and the filter should be rejected. The data structure will always be 3260 * modified even if FLOW_EXT is not set. 3261 * 3262 **/ 3263 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3264 struct i40e_rx_flow_userdef *data) 3265 { 3266 u64 value, mask; 3267 int valid; 3268 3269 /* Zero memory first so it's always consistent. */ 3270 memset(data, 0, sizeof(*data)); 3271 3272 if (!(fsp->flow_type & FLOW_EXT)) 3273 return 0; 3274 3275 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data)); 3276 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data)); 3277 3278 #define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0) 3279 #define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16) 3280 #define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0) 3281 3282 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER); 3283 if (valid < 0) { 3284 return -EINVAL; 3285 } else if (valid) { 3286 data->flex_word = value & I40E_USERDEF_FLEX_WORD; 3287 data->flex_offset = 3288 FIELD_GET(I40E_USERDEF_FLEX_OFFSET, value); 3289 data->flex_filter = true; 3290 } 3291 3292 return 0; 3293 } 3294 3295 /** 3296 * i40e_fill_rx_flow_user_data - Fill in user-defined data field 3297 * @fsp: pointer to rx_flow specification 3298 * @data: pointer to return userdef data 3299 * 3300 * Reads the userdef data structure and properly fills in the user defined 3301 * fields of the rx_flow_spec. 3302 **/ 3303 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3304 struct i40e_rx_flow_userdef *data) 3305 { 3306 u64 value = 0, mask = 0; 3307 3308 if (data->flex_filter) { 3309 value |= data->flex_word; 3310 value |= (u64)data->flex_offset << 16; 3311 mask |= I40E_USERDEF_FLEX_FILTER; 3312 } 3313 3314 if (value || mask) 3315 fsp->flow_type |= FLOW_EXT; 3316 3317 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value); 3318 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask); 3319 } 3320 3321 /** 3322 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 3323 * @pf: Pointer to the physical function struct 3324 * @cmd: The command to get or set Rx flow classification rules 3325 * @rule_locs: Array of used rule locations 3326 * 3327 * This function populates both the total and actual rule count of 3328 * the ethtool flow classification command 3329 * 3330 * Returns 0 on success or -EMSGSIZE if entry not found 3331 **/ 3332 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 3333 struct ethtool_rxnfc *cmd, 3334 u32 *rule_locs) 3335 { 3336 struct i40e_fdir_filter *rule; 3337 struct hlist_node *node2; 3338 int cnt = 0; 3339 3340 /* report total rule count */ 3341 cmd->data = i40e_get_fd_cnt_all(pf); 3342 3343 hlist_for_each_entry_safe(rule, node2, 3344 &pf->fdir_filter_list, fdir_node) { 3345 if (cnt == cmd->rule_cnt) 3346 return -EMSGSIZE; 3347 3348 rule_locs[cnt] = rule->fd_id; 3349 cnt++; 3350 } 3351 3352 cmd->rule_cnt = cnt; 3353 3354 return 0; 3355 } 3356 3357 /** 3358 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 3359 * @pf: Pointer to the physical function struct 3360 * @cmd: The command to get or set Rx flow classification rules 3361 * 3362 * This function looks up a filter based on the Rx flow classification 3363 * command and fills the flow spec info for it if found 3364 * 3365 * Returns 0 on success or -EINVAL if filter not found 3366 **/ 3367 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 3368 struct ethtool_rxnfc *cmd) 3369 { 3370 struct ethtool_rx_flow_spec *fsp = 3371 (struct ethtool_rx_flow_spec *)&cmd->fs; 3372 struct i40e_rx_flow_userdef userdef = {0}; 3373 struct i40e_fdir_filter *rule = NULL; 3374 struct hlist_node *node2; 3375 struct i40e_vsi *vsi; 3376 u64 input_set; 3377 u16 index; 3378 3379 hlist_for_each_entry_safe(rule, node2, 3380 &pf->fdir_filter_list, fdir_node) { 3381 if (fsp->location <= rule->fd_id) 3382 break; 3383 } 3384 3385 if (!rule || fsp->location != rule->fd_id) 3386 return -EINVAL; 3387 3388 fsp->flow_type = rule->flow_type; 3389 if (fsp->flow_type == IP_USER_FLOW) { 3390 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 3391 fsp->h_u.usr_ip4_spec.proto = 0; 3392 fsp->m_u.usr_ip4_spec.proto = 0; 3393 } 3394 3395 if (fsp->flow_type == IPV6_USER_FLOW || 3396 fsp->flow_type == UDP_V6_FLOW || 3397 fsp->flow_type == TCP_V6_FLOW || 3398 fsp->flow_type == SCTP_V6_FLOW) { 3399 /* Reverse the src and dest notion, since the HW views them 3400 * from Tx perspective where as the user expects it from 3401 * Rx filter view. 3402 */ 3403 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port; 3404 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port; 3405 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6, 3406 sizeof(__be32) * 4); 3407 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6, 3408 sizeof(__be32) * 4); 3409 } else { 3410 /* Reverse the src and dest notion, since the HW views them 3411 * from Tx perspective where as the user expects it from 3412 * Rx filter view. 3413 */ 3414 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 3415 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 3416 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip; 3417 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip; 3418 } 3419 3420 switch (rule->flow_type) { 3421 case SCTP_V4_FLOW: 3422 index = LIBIE_FILTER_PCTYPE_NONF_IPV4_SCTP; 3423 break; 3424 case TCP_V4_FLOW: 3425 index = LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP; 3426 break; 3427 case UDP_V4_FLOW: 3428 index = LIBIE_FILTER_PCTYPE_NONF_IPV4_UDP; 3429 break; 3430 case SCTP_V6_FLOW: 3431 index = LIBIE_FILTER_PCTYPE_NONF_IPV6_SCTP; 3432 break; 3433 case TCP_V6_FLOW: 3434 index = LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP; 3435 break; 3436 case UDP_V6_FLOW: 3437 index = LIBIE_FILTER_PCTYPE_NONF_IPV6_UDP; 3438 break; 3439 case IP_USER_FLOW: 3440 index = LIBIE_FILTER_PCTYPE_NONF_IPV4_OTHER; 3441 break; 3442 case IPV6_USER_FLOW: 3443 index = LIBIE_FILTER_PCTYPE_NONF_IPV6_OTHER; 3444 break; 3445 default: 3446 /* If we have stored a filter with a flow type not listed here 3447 * it is almost certainly a driver bug. WARN(), and then 3448 * assign the input_set as if all fields are enabled to avoid 3449 * reading unassigned memory. 3450 */ 3451 WARN(1, "Missing input set index for flow_type %d\n", 3452 rule->flow_type); 3453 input_set = 0xFFFFFFFFFFFFFFFFULL; 3454 goto no_input_set; 3455 } 3456 3457 input_set = i40e_read_fd_input_set(pf, index); 3458 3459 no_input_set: 3460 if (input_set & I40E_L3_V6_SRC_MASK) { 3461 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF); 3462 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF); 3463 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF); 3464 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF); 3465 } 3466 3467 if (input_set & I40E_L3_V6_DST_MASK) { 3468 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF); 3469 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF); 3470 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF); 3471 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF); 3472 } 3473 3474 if (input_set & I40E_L3_SRC_MASK) 3475 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF); 3476 3477 if (input_set & I40E_L3_DST_MASK) 3478 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF); 3479 3480 if (input_set & I40E_L4_SRC_MASK) 3481 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF); 3482 3483 if (input_set & I40E_L4_DST_MASK) 3484 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF); 3485 3486 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 3487 fsp->ring_cookie = RX_CLS_FLOW_DISC; 3488 else 3489 fsp->ring_cookie = rule->q_index; 3490 3491 if (rule->vlan_tag) { 3492 fsp->h_ext.vlan_etype = rule->vlan_etype; 3493 fsp->m_ext.vlan_etype = htons(0xFFFF); 3494 fsp->h_ext.vlan_tci = rule->vlan_tag; 3495 fsp->m_ext.vlan_tci = htons(0xFFFF); 3496 fsp->flow_type |= FLOW_EXT; 3497 } 3498 3499 vsi = i40e_pf_get_main_vsi(pf); 3500 if (rule->dest_vsi != vsi->id) { 3501 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); 3502 if (vsi && vsi->type == I40E_VSI_SRIOV) { 3503 /* VFs are zero-indexed by the driver, but ethtool 3504 * expects them to be one-indexed, so add one here 3505 */ 3506 u64 ring_vf = vsi->vf_id + 1; 3507 3508 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF; 3509 fsp->ring_cookie |= ring_vf; 3510 } 3511 } 3512 3513 if (rule->flex_filter) { 3514 userdef.flex_filter = true; 3515 userdef.flex_word = be16_to_cpu(rule->flex_word); 3516 userdef.flex_offset = rule->flex_offset; 3517 } 3518 3519 i40e_fill_rx_flow_user_data(fsp, &userdef); 3520 3521 return 0; 3522 } 3523 3524 /** 3525 * i40e_get_rx_ring_count - get RX ring count 3526 * @netdev: network interface device structure 3527 * 3528 * Return: number of RX rings. 3529 **/ 3530 static u32 i40e_get_rx_ring_count(struct net_device *netdev) 3531 { 3532 struct i40e_netdev_priv *np = netdev_priv(netdev); 3533 struct i40e_vsi *vsi = np->vsi; 3534 3535 return vsi->rss_size; 3536 } 3537 3538 /** 3539 * i40e_get_rxnfc - command to get RX flow classification rules 3540 * @netdev: network interface device structure 3541 * @cmd: ethtool rxnfc command 3542 * @rule_locs: pointer to store rule data 3543 * 3544 * Returns Success if the command is supported. 3545 **/ 3546 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 3547 u32 *rule_locs) 3548 { 3549 struct i40e_netdev_priv *np = netdev_priv(netdev); 3550 struct i40e_vsi *vsi = np->vsi; 3551 struct i40e_pf *pf = vsi->back; 3552 int ret = -EOPNOTSUPP; 3553 3554 switch (cmd->cmd) { 3555 case ETHTOOL_GRXCLSRLCNT: 3556 cmd->rule_cnt = pf->fdir_pf_active_filters; 3557 /* report total rule count */ 3558 cmd->data = i40e_get_fd_cnt_all(pf); 3559 ret = 0; 3560 break; 3561 case ETHTOOL_GRXCLSRULE: 3562 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 3563 break; 3564 case ETHTOOL_GRXCLSRLALL: 3565 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 3566 break; 3567 default: 3568 break; 3569 } 3570 3571 return ret; 3572 } 3573 3574 /** 3575 * i40e_get_rss_hash_bits - Read RSS Hash bits from register 3576 * @hw: hw structure 3577 * @nfc: pointer to user request 3578 * @i_setc: bits currently set 3579 * 3580 * Returns value of bits to be set per user request 3581 **/ 3582 static u64 i40e_get_rss_hash_bits(struct i40e_hw *hw, 3583 const struct ethtool_rxfh_fields *nfc, 3584 u64 i_setc) 3585 { 3586 u64 i_set = i_setc; 3587 u64 src_l3 = 0, dst_l3 = 0; 3588 3589 if (nfc->data & RXH_L4_B_0_1) 3590 i_set |= I40E_L4_SRC_MASK; 3591 else 3592 i_set &= ~I40E_L4_SRC_MASK; 3593 if (nfc->data & RXH_L4_B_2_3) 3594 i_set |= I40E_L4_DST_MASK; 3595 else 3596 i_set &= ~I40E_L4_DST_MASK; 3597 3598 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) { 3599 src_l3 = I40E_L3_V6_SRC_MASK; 3600 dst_l3 = I40E_L3_V6_DST_MASK; 3601 } else if (nfc->flow_type == TCP_V4_FLOW || 3602 nfc->flow_type == UDP_V4_FLOW) { 3603 if (hw->mac.type == I40E_MAC_X722) { 3604 src_l3 = I40E_X722_L3_SRC_MASK; 3605 dst_l3 = I40E_X722_L3_DST_MASK; 3606 } else { 3607 src_l3 = I40E_L3_SRC_MASK; 3608 dst_l3 = I40E_L3_DST_MASK; 3609 } 3610 } else { 3611 /* Any other flow type are not supported here */ 3612 return i_set; 3613 } 3614 3615 if (nfc->data & RXH_IP_SRC) 3616 i_set |= src_l3; 3617 else 3618 i_set &= ~src_l3; 3619 if (nfc->data & RXH_IP_DST) 3620 i_set |= dst_l3; 3621 else 3622 i_set &= ~dst_l3; 3623 3624 return i_set; 3625 } 3626 3627 #define FLOW_PCTYPES_SIZE 64 3628 static int i40e_set_rxfh_fields(struct net_device *netdev, 3629 const struct ethtool_rxfh_fields *nfc, 3630 struct netlink_ext_ack *extack) 3631 { 3632 struct i40e_netdev_priv *np = netdev_priv(netdev); 3633 struct i40e_vsi *vsi = np->vsi; 3634 struct i40e_pf *pf = vsi->back; 3635 struct i40e_hw *hw = &pf->hw; 3636 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | 3637 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); 3638 DECLARE_BITMAP(flow_pctypes, FLOW_PCTYPES_SIZE); 3639 u64 i_set, i_setc; 3640 3641 bitmap_zero(flow_pctypes, FLOW_PCTYPES_SIZE); 3642 3643 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) { 3644 dev_err(&pf->pdev->dev, 3645 "Change of RSS hash input set is not supported when MFP mode is enabled\n"); 3646 return -EOPNOTSUPP; 3647 } 3648 3649 /* RSS does not support anything other than hashing 3650 * to queues on src and dst IPs and ports 3651 */ 3652 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 3653 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 3654 return -EINVAL; 3655 3656 switch (nfc->flow_type) { 3657 case TCP_V4_FLOW: 3658 set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP, flow_pctypes); 3659 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 3660 pf->hw.caps)) 3661 set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK, 3662 flow_pctypes); 3663 break; 3664 case TCP_V6_FLOW: 3665 set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP, flow_pctypes); 3666 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 3667 pf->hw.caps)) 3668 set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK, 3669 flow_pctypes); 3670 break; 3671 case UDP_V4_FLOW: 3672 set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV4_UDP, flow_pctypes); 3673 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 3674 pf->hw.caps)) { 3675 set_bit(LIBIE_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP, 3676 flow_pctypes); 3677 set_bit(LIBIE_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP, 3678 flow_pctypes); 3679 } 3680 hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_FRAG_IPV4); 3681 break; 3682 case UDP_V6_FLOW: 3683 set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV6_UDP, flow_pctypes); 3684 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 3685 pf->hw.caps)) { 3686 set_bit(LIBIE_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP, 3687 flow_pctypes); 3688 set_bit(LIBIE_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP, 3689 flow_pctypes); 3690 } 3691 hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_FRAG_IPV6); 3692 break; 3693 case AH_ESP_V4_FLOW: 3694 case AH_V4_FLOW: 3695 case ESP_V4_FLOW: 3696 case SCTP_V4_FLOW: 3697 if ((nfc->data & RXH_L4_B_0_1) || 3698 (nfc->data & RXH_L4_B_2_3)) 3699 return -EINVAL; 3700 hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV4_OTHER); 3701 break; 3702 case AH_ESP_V6_FLOW: 3703 case AH_V6_FLOW: 3704 case ESP_V6_FLOW: 3705 case SCTP_V6_FLOW: 3706 if ((nfc->data & RXH_L4_B_0_1) || 3707 (nfc->data & RXH_L4_B_2_3)) 3708 return -EINVAL; 3709 hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV6_OTHER); 3710 break; 3711 case IPV4_FLOW: 3712 hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV4_OTHER) | 3713 BIT_ULL(LIBIE_FILTER_PCTYPE_FRAG_IPV4); 3714 break; 3715 case IPV6_FLOW: 3716 hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV6_OTHER) | 3717 BIT_ULL(LIBIE_FILTER_PCTYPE_FRAG_IPV6); 3718 break; 3719 default: 3720 return -EINVAL; 3721 } 3722 3723 if (bitmap_weight(flow_pctypes, FLOW_PCTYPES_SIZE)) { 3724 u8 flow_id; 3725 3726 for_each_set_bit(flow_id, flow_pctypes, FLOW_PCTYPES_SIZE) { 3727 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id)) | 3728 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id)) << 32); 3729 i_set = i40e_get_rss_hash_bits(&pf->hw, nfc, i_setc); 3730 3731 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id), 3732 (u32)i_set); 3733 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id), 3734 (u32)(i_set >> 32)); 3735 hena |= BIT_ULL(flow_id); 3736 } 3737 } 3738 3739 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); 3740 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 3741 i40e_flush(hw); 3742 3743 return 0; 3744 } 3745 3746 /** 3747 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 3748 * @vsi: Pointer to the targeted VSI 3749 * @input: The filter to update or NULL to indicate deletion 3750 * @sw_idx: Software index to the filter 3751 * @cmd: The command to get or set Rx flow classification rules 3752 * 3753 * This function updates (or deletes) a Flow Director entry from 3754 * the hlist of the corresponding PF 3755 * 3756 * Returns 0 on success 3757 **/ 3758 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 3759 struct i40e_fdir_filter *input, 3760 u16 sw_idx, 3761 struct ethtool_rxnfc *cmd) 3762 { 3763 struct i40e_fdir_filter *rule, *parent; 3764 struct i40e_pf *pf = vsi->back; 3765 struct hlist_node *node2; 3766 int err = -EINVAL; 3767 3768 parent = NULL; 3769 rule = NULL; 3770 3771 hlist_for_each_entry_safe(rule, node2, 3772 &pf->fdir_filter_list, fdir_node) { 3773 /* hash found, or no matching entry */ 3774 if (rule->fd_id >= sw_idx) 3775 break; 3776 parent = rule; 3777 } 3778 3779 /* if there is an old rule occupying our place remove it */ 3780 if (rule && (rule->fd_id == sw_idx)) { 3781 /* Remove this rule, since we're either deleting it, or 3782 * replacing it. 3783 */ 3784 err = i40e_add_del_fdir(vsi, rule, false); 3785 hlist_del(&rule->fdir_node); 3786 kfree(rule); 3787 pf->fdir_pf_active_filters--; 3788 } 3789 3790 /* If we weren't given an input, this is a delete, so just return the 3791 * error code indicating if there was an entry at the requested slot 3792 */ 3793 if (!input) 3794 return err; 3795 3796 /* Otherwise, install the new rule as requested */ 3797 INIT_HLIST_NODE(&input->fdir_node); 3798 3799 /* add filter to the list */ 3800 if (parent) 3801 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 3802 else 3803 hlist_add_head(&input->fdir_node, 3804 &pf->fdir_filter_list); 3805 3806 /* update counts */ 3807 pf->fdir_pf_active_filters++; 3808 3809 return 0; 3810 } 3811 3812 /** 3813 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table 3814 * @pf: pointer to PF structure 3815 * 3816 * This function searches the list of filters and determines which FLX_PIT 3817 * entries are still required. It will prune any entries which are no longer 3818 * in use after the deletion. 3819 **/ 3820 static void i40e_prune_flex_pit_list(struct i40e_pf *pf) 3821 { 3822 struct i40e_flex_pit *entry, *tmp; 3823 struct i40e_fdir_filter *rule; 3824 3825 /* First, we'll check the l3 table */ 3826 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) { 3827 bool found = false; 3828 3829 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3830 if (rule->flow_type != IP_USER_FLOW) 3831 continue; 3832 if (rule->flex_filter && 3833 rule->flex_offset == entry->src_offset) { 3834 found = true; 3835 break; 3836 } 3837 } 3838 3839 /* If we didn't find the filter, then we can prune this entry 3840 * from the list. 3841 */ 3842 if (!found) { 3843 list_del(&entry->list); 3844 kfree(entry); 3845 } 3846 } 3847 3848 /* Followed by the L4 table */ 3849 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) { 3850 bool found = false; 3851 3852 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3853 /* Skip this filter if it's L3, since we already 3854 * checked those in the above loop 3855 */ 3856 if (rule->flow_type == IP_USER_FLOW) 3857 continue; 3858 if (rule->flex_filter && 3859 rule->flex_offset == entry->src_offset) { 3860 found = true; 3861 break; 3862 } 3863 } 3864 3865 /* If we didn't find the filter, then we can prune this entry 3866 * from the list. 3867 */ 3868 if (!found) { 3869 list_del(&entry->list); 3870 kfree(entry); 3871 } 3872 } 3873 } 3874 3875 /** 3876 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 3877 * @vsi: Pointer to the targeted VSI 3878 * @cmd: The command to get or set Rx flow classification rules 3879 * 3880 * The function removes a Flow Director filter entry from the 3881 * hlist of the corresponding PF 3882 * 3883 * Returns 0 on success 3884 */ 3885 static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 3886 struct ethtool_rxnfc *cmd) 3887 { 3888 struct ethtool_rx_flow_spec *fsp = 3889 (struct ethtool_rx_flow_spec *)&cmd->fs; 3890 struct i40e_pf *pf = vsi->back; 3891 int ret = 0; 3892 3893 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 3894 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 3895 return -EBUSY; 3896 3897 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 3898 return -EBUSY; 3899 3900 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 3901 3902 i40e_prune_flex_pit_list(pf); 3903 3904 i40e_fdir_check_and_reenable(pf); 3905 return ret; 3906 } 3907 3908 /** 3909 * i40e_unused_pit_index - Find an unused PIT index for given list 3910 * @pf: the PF data structure 3911 * 3912 * Find the first unused flexible PIT index entry. We search both the L3 and 3913 * L4 flexible PIT lists so that the returned index is unique and unused by 3914 * either currently programmed L3 or L4 filters. We use a bit field as storage 3915 * to track which indexes are already used. 3916 **/ 3917 static u8 i40e_unused_pit_index(struct i40e_pf *pf) 3918 { 3919 unsigned long available_index = 0xFF; 3920 struct i40e_flex_pit *entry; 3921 3922 /* We need to make sure that the new index isn't in use by either L3 3923 * or L4 filters so that IP_USER_FLOW filters can program both L3 and 3924 * L4 to use the same index. 3925 */ 3926 3927 list_for_each_entry(entry, &pf->l4_flex_pit_list, list) 3928 clear_bit(entry->pit_index, &available_index); 3929 3930 list_for_each_entry(entry, &pf->l3_flex_pit_list, list) 3931 clear_bit(entry->pit_index, &available_index); 3932 3933 return find_first_bit(&available_index, 8); 3934 } 3935 3936 /** 3937 * i40e_find_flex_offset - Find an existing flex src_offset 3938 * @flex_pit_list: L3 or L4 flex PIT list 3939 * @src_offset: new src_offset to find 3940 * 3941 * Searches the flex_pit_list for an existing offset. If no offset is 3942 * currently programmed, then this will return an ERR_PTR if there is no space 3943 * to add a new offset, otherwise it returns NULL. 3944 **/ 3945 static 3946 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list, 3947 u16 src_offset) 3948 { 3949 struct i40e_flex_pit *entry; 3950 int size = 0; 3951 3952 /* Search for the src_offset first. If we find a matching entry 3953 * already programmed, we can simply re-use it. 3954 */ 3955 list_for_each_entry(entry, flex_pit_list, list) { 3956 size++; 3957 if (entry->src_offset == src_offset) 3958 return entry; 3959 } 3960 3961 /* If we haven't found an entry yet, then the provided src offset has 3962 * not yet been programmed. We will program the src offset later on, 3963 * but we need to indicate whether there is enough space to do so 3964 * here. We'll make use of ERR_PTR for this purpose. 3965 */ 3966 if (size >= I40E_FLEX_PIT_TABLE_SIZE) 3967 return ERR_PTR(-ENOSPC); 3968 3969 return NULL; 3970 } 3971 3972 /** 3973 * i40e_add_flex_offset - Add src_offset to flex PIT table list 3974 * @flex_pit_list: L3 or L4 flex PIT list 3975 * @src_offset: new src_offset to add 3976 * @pit_index: the PIT index to program 3977 * 3978 * This function programs the new src_offset to the list. It is expected that 3979 * i40e_find_flex_offset has already been tried and returned NULL, indicating 3980 * that this offset is not programmed, and that the list has enough space to 3981 * store another offset. 3982 * 3983 * Returns 0 on success, and negative value on error. 3984 **/ 3985 static int i40e_add_flex_offset(struct list_head *flex_pit_list, 3986 u16 src_offset, 3987 u8 pit_index) 3988 { 3989 struct i40e_flex_pit *new_pit, *entry; 3990 3991 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL); 3992 if (!new_pit) 3993 return -ENOMEM; 3994 3995 new_pit->src_offset = src_offset; 3996 new_pit->pit_index = pit_index; 3997 3998 /* We need to insert this item such that the list is sorted by 3999 * src_offset in ascending order. 4000 */ 4001 list_for_each_entry(entry, flex_pit_list, list) { 4002 if (new_pit->src_offset < entry->src_offset) { 4003 list_add_tail(&new_pit->list, &entry->list); 4004 return 0; 4005 } 4006 4007 /* If we found an entry with our offset already programmed we 4008 * can simply return here, after freeing the memory. However, 4009 * if the pit_index does not match we need to report an error. 4010 */ 4011 if (new_pit->src_offset == entry->src_offset) { 4012 int err = 0; 4013 4014 /* If the PIT index is not the same we can't re-use 4015 * the entry, so we must report an error. 4016 */ 4017 if (new_pit->pit_index != entry->pit_index) 4018 err = -EINVAL; 4019 4020 kfree(new_pit); 4021 return err; 4022 } 4023 } 4024 4025 /* If we reached here, then we haven't yet added the item. This means 4026 * that we should add the item at the end of the list. 4027 */ 4028 list_add_tail(&new_pit->list, flex_pit_list); 4029 return 0; 4030 } 4031 4032 /** 4033 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table 4034 * @pf: Pointer to the PF structure 4035 * @flex_pit_list: list of flexible src offsets in use 4036 * @flex_pit_start: index to first entry for this section of the table 4037 * 4038 * In order to handle flexible data, the hardware uses a table of values 4039 * called the FLX_PIT table. This table is used to indicate which sections of 4040 * the input correspond to what PIT index values. Unfortunately, hardware is 4041 * very restrictive about programming this table. Entries must be ordered by 4042 * src_offset in ascending order, without duplicates. Additionally, unused 4043 * entries must be set to the unused index value, and must have valid size and 4044 * length according to the src_offset ordering. 4045 * 4046 * This function will reprogram the FLX_PIT register from a book-keeping 4047 * structure that we guarantee is already ordered correctly, and has no more 4048 * than 3 entries. 4049 * 4050 * To make things easier, we only support flexible values of one word length, 4051 * rather than allowing variable length flexible values. 4052 **/ 4053 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf, 4054 struct list_head *flex_pit_list, 4055 int flex_pit_start) 4056 { 4057 struct i40e_flex_pit *entry = NULL; 4058 u16 last_offset = 0; 4059 int i = 0, j = 0; 4060 4061 /* First, loop over the list of flex PIT entries, and reprogram the 4062 * registers. 4063 */ 4064 list_for_each_entry(entry, flex_pit_list, list) { 4065 /* We have to be careful when programming values for the 4066 * largest SRC_OFFSET value. It is possible that adding 4067 * additional empty values at the end would overflow the space 4068 * for the SRC_OFFSET in the FLX_PIT register. To avoid this, 4069 * we check here and add the empty values prior to adding the 4070 * largest value. 4071 * 4072 * To determine this, we will use a loop from i+1 to 3, which 4073 * will determine whether the unused entries would have valid 4074 * SRC_OFFSET. Note that there cannot be extra entries past 4075 * this value, because the only valid values would have been 4076 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not 4077 * have been added to the list in the first place. 4078 */ 4079 for (j = i + 1; j < 3; j++) { 4080 u16 offset = entry->src_offset + j; 4081 int index = flex_pit_start + i; 4082 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 4083 1, 4084 offset - 3); 4085 4086 if (offset > I40E_MAX_FLEX_SRC_OFFSET) { 4087 i40e_write_rx_ctl(&pf->hw, 4088 I40E_PRTQF_FLX_PIT(index), 4089 value); 4090 i++; 4091 } 4092 } 4093 4094 /* Now, we can program the actual value into the table */ 4095 i40e_write_rx_ctl(&pf->hw, 4096 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 4097 I40E_FLEX_PREP_VAL(entry->pit_index + 50, 4098 1, 4099 entry->src_offset)); 4100 i++; 4101 } 4102 4103 /* In order to program the last entries in the table, we need to 4104 * determine the valid offset. If the list is empty, we'll just start 4105 * with 0. Otherwise, we'll start with the last item offset and add 1. 4106 * This ensures that all entries have valid sizes. If we don't do this 4107 * correctly, the hardware will disable flexible field parsing. 4108 */ 4109 if (!list_empty(flex_pit_list)) 4110 last_offset = list_prev_entry(entry, list)->src_offset + 1; 4111 4112 for (; i < 3; i++, last_offset++) { 4113 i40e_write_rx_ctl(&pf->hw, 4114 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 4115 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 4116 1, 4117 last_offset)); 4118 } 4119 } 4120 4121 /** 4122 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change 4123 * @pf: pointer to the PF structure 4124 * 4125 * This function reprograms both the L3 and L4 FLX_PIT tables. See the 4126 * internal helper function for implementation details. 4127 **/ 4128 static void i40e_reprogram_flex_pit(struct i40e_pf *pf) 4129 { 4130 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list, 4131 I40E_FLEX_PIT_IDX_START_L3); 4132 4133 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list, 4134 I40E_FLEX_PIT_IDX_START_L4); 4135 4136 /* We also need to program the L3 and L4 GLQF ORT register */ 4137 i40e_write_rx_ctl(&pf->hw, 4138 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX), 4139 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3, 4140 3, 1)); 4141 4142 i40e_write_rx_ctl(&pf->hw, 4143 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX), 4144 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4, 4145 3, 1)); 4146 } 4147 4148 /** 4149 * i40e_flow_str - Converts a flow_type into a human readable string 4150 * @fsp: the flow specification 4151 * 4152 * Currently only flow types we support are included here, and the string 4153 * value attempts to match what ethtool would use to configure this flow type. 4154 **/ 4155 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp) 4156 { 4157 switch (fsp->flow_type & ~FLOW_EXT) { 4158 case TCP_V4_FLOW: 4159 return "tcp4"; 4160 case UDP_V4_FLOW: 4161 return "udp4"; 4162 case SCTP_V4_FLOW: 4163 return "sctp4"; 4164 case IP_USER_FLOW: 4165 return "ip4"; 4166 case TCP_V6_FLOW: 4167 return "tcp6"; 4168 case UDP_V6_FLOW: 4169 return "udp6"; 4170 case SCTP_V6_FLOW: 4171 return "sctp6"; 4172 case IPV6_USER_FLOW: 4173 return "ip6"; 4174 default: 4175 return "unknown"; 4176 } 4177 } 4178 4179 /** 4180 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index 4181 * @pit_index: PIT index to convert 4182 * 4183 * Returns the mask for a given PIT index. Will return 0 if the pit_index is 4184 * of range. 4185 **/ 4186 static u64 i40e_pit_index_to_mask(int pit_index) 4187 { 4188 switch (pit_index) { 4189 case 0: 4190 return I40E_FLEX_50_MASK; 4191 case 1: 4192 return I40E_FLEX_51_MASK; 4193 case 2: 4194 return I40E_FLEX_52_MASK; 4195 case 3: 4196 return I40E_FLEX_53_MASK; 4197 case 4: 4198 return I40E_FLEX_54_MASK; 4199 case 5: 4200 return I40E_FLEX_55_MASK; 4201 case 6: 4202 return I40E_FLEX_56_MASK; 4203 case 7: 4204 return I40E_FLEX_57_MASK; 4205 default: 4206 return 0; 4207 } 4208 } 4209 4210 /** 4211 * i40e_print_input_set - Show changes between two input sets 4212 * @vsi: the vsi being configured 4213 * @old: the old input set 4214 * @new: the new input set 4215 * 4216 * Print the difference between old and new input sets by showing which series 4217 * of words are toggled on or off. Only displays the bits we actually support 4218 * changing. 4219 **/ 4220 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new) 4221 { 4222 struct i40e_pf *pf = vsi->back; 4223 bool old_value, new_value; 4224 int i; 4225 4226 old_value = !!(old & I40E_L3_SRC_MASK); 4227 new_value = !!(new & I40E_L3_SRC_MASK); 4228 if (old_value != new_value) 4229 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n", 4230 old_value ? "ON" : "OFF", 4231 new_value ? "ON" : "OFF"); 4232 4233 old_value = !!(old & I40E_L3_DST_MASK); 4234 new_value = !!(new & I40E_L3_DST_MASK); 4235 if (old_value != new_value) 4236 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n", 4237 old_value ? "ON" : "OFF", 4238 new_value ? "ON" : "OFF"); 4239 4240 old_value = !!(old & I40E_L4_SRC_MASK); 4241 new_value = !!(new & I40E_L4_SRC_MASK); 4242 if (old_value != new_value) 4243 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n", 4244 old_value ? "ON" : "OFF", 4245 new_value ? "ON" : "OFF"); 4246 4247 old_value = !!(old & I40E_L4_DST_MASK); 4248 new_value = !!(new & I40E_L4_DST_MASK); 4249 if (old_value != new_value) 4250 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n", 4251 old_value ? "ON" : "OFF", 4252 new_value ? "ON" : "OFF"); 4253 4254 old_value = !!(old & I40E_VERIFY_TAG_MASK); 4255 new_value = !!(new & I40E_VERIFY_TAG_MASK); 4256 if (old_value != new_value) 4257 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n", 4258 old_value ? "ON" : "OFF", 4259 new_value ? "ON" : "OFF"); 4260 4261 /* Show change of flexible filter entries */ 4262 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) { 4263 u64 flex_mask = i40e_pit_index_to_mask(i); 4264 4265 old_value = !!(old & flex_mask); 4266 new_value = !!(new & flex_mask); 4267 if (old_value != new_value) 4268 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n", 4269 i, 4270 old_value ? "ON" : "OFF", 4271 new_value ? "ON" : "OFF"); 4272 } 4273 4274 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n", 4275 old); 4276 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n", 4277 new); 4278 } 4279 4280 /** 4281 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid 4282 * @vsi: pointer to the targeted VSI 4283 * @fsp: pointer to Rx flow specification 4284 * @userdef: userdefined data from flow specification 4285 * 4286 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support 4287 * for partial matches exists with a few limitations. First, hardware only 4288 * supports masking by word boundary (2 bytes) and not per individual bit. 4289 * Second, hardware is limited to using one mask for a flow type and cannot 4290 * use a separate mask for each filter. 4291 * 4292 * To support these limitations, if we already have a configured filter for 4293 * the specified type, this function enforces that new filters of the type 4294 * match the configured input set. Otherwise, if we do not have a filter of 4295 * the specified type, we allow the input set to be updated to match the 4296 * desired filter. 4297 * 4298 * To help ensure that administrators understand why filters weren't displayed 4299 * as supported, we print a diagnostic message displaying how the input set 4300 * would change and warning to delete the preexisting filters if required. 4301 * 4302 * Returns 0 on successful input set match, and a negative return code on 4303 * failure. 4304 **/ 4305 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi, 4306 struct ethtool_rx_flow_spec *fsp, 4307 struct i40e_rx_flow_userdef *userdef) 4308 { 4309 static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff), 4310 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff), 4311 cpu_to_be32(0xffffffff)}; 4312 struct ethtool_tcpip6_spec *tcp_ip6_spec; 4313 struct ethtool_usrip6_spec *usr_ip6_spec; 4314 struct ethtool_tcpip4_spec *tcp_ip4_spec; 4315 struct ethtool_usrip4_spec *usr_ip4_spec; 4316 struct i40e_pf *pf = vsi->back; 4317 u64 current_mask, new_mask; 4318 bool new_flex_offset = false; 4319 bool flex_l3 = false; 4320 u16 *fdir_filter_count; 4321 u16 index, src_offset = 0; 4322 u8 pit_index = 0; 4323 int err; 4324 4325 switch (fsp->flow_type & ~FLOW_EXT) { 4326 case SCTP_V4_FLOW: 4327 index = LIBIE_FILTER_PCTYPE_NONF_IPV4_SCTP; 4328 fdir_filter_count = &pf->fd_sctp4_filter_cnt; 4329 break; 4330 case TCP_V4_FLOW: 4331 index = LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP; 4332 fdir_filter_count = &pf->fd_tcp4_filter_cnt; 4333 break; 4334 case UDP_V4_FLOW: 4335 index = LIBIE_FILTER_PCTYPE_NONF_IPV4_UDP; 4336 fdir_filter_count = &pf->fd_udp4_filter_cnt; 4337 break; 4338 case SCTP_V6_FLOW: 4339 index = LIBIE_FILTER_PCTYPE_NONF_IPV6_SCTP; 4340 fdir_filter_count = &pf->fd_sctp6_filter_cnt; 4341 break; 4342 case TCP_V6_FLOW: 4343 index = LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP; 4344 fdir_filter_count = &pf->fd_tcp6_filter_cnt; 4345 break; 4346 case UDP_V6_FLOW: 4347 index = LIBIE_FILTER_PCTYPE_NONF_IPV6_UDP; 4348 fdir_filter_count = &pf->fd_udp6_filter_cnt; 4349 break; 4350 case IP_USER_FLOW: 4351 index = LIBIE_FILTER_PCTYPE_NONF_IPV4_OTHER; 4352 fdir_filter_count = &pf->fd_ip4_filter_cnt; 4353 flex_l3 = true; 4354 break; 4355 case IPV6_USER_FLOW: 4356 index = LIBIE_FILTER_PCTYPE_NONF_IPV6_OTHER; 4357 fdir_filter_count = &pf->fd_ip6_filter_cnt; 4358 flex_l3 = true; 4359 break; 4360 default: 4361 return -EOPNOTSUPP; 4362 } 4363 4364 /* Read the current input set from register memory. */ 4365 current_mask = i40e_read_fd_input_set(pf, index); 4366 new_mask = current_mask; 4367 4368 /* Determine, if any, the required changes to the input set in order 4369 * to support the provided mask. 4370 * 4371 * Hardware only supports masking at word (2 byte) granularity and does 4372 * not support full bitwise masking. This implementation simplifies 4373 * even further and only supports fully enabled or fully disabled 4374 * masks for each field, even though we could split the ip4src and 4375 * ip4dst fields. 4376 */ 4377 switch (fsp->flow_type & ~FLOW_EXT) { 4378 case SCTP_V4_FLOW: 4379 new_mask &= ~I40E_VERIFY_TAG_MASK; 4380 fallthrough; 4381 case TCP_V4_FLOW: 4382 case UDP_V4_FLOW: 4383 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec; 4384 4385 /* IPv4 source address */ 4386 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4387 new_mask |= I40E_L3_SRC_MASK; 4388 else if (!tcp_ip4_spec->ip4src) 4389 new_mask &= ~I40E_L3_SRC_MASK; 4390 else 4391 return -EOPNOTSUPP; 4392 4393 /* IPv4 destination address */ 4394 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4395 new_mask |= I40E_L3_DST_MASK; 4396 else if (!tcp_ip4_spec->ip4dst) 4397 new_mask &= ~I40E_L3_DST_MASK; 4398 else 4399 return -EOPNOTSUPP; 4400 4401 /* L4 source port */ 4402 if (tcp_ip4_spec->psrc == htons(0xFFFF)) 4403 new_mask |= I40E_L4_SRC_MASK; 4404 else if (!tcp_ip4_spec->psrc) 4405 new_mask &= ~I40E_L4_SRC_MASK; 4406 else 4407 return -EOPNOTSUPP; 4408 4409 /* L4 destination port */ 4410 if (tcp_ip4_spec->pdst == htons(0xFFFF)) 4411 new_mask |= I40E_L4_DST_MASK; 4412 else if (!tcp_ip4_spec->pdst) 4413 new_mask &= ~I40E_L4_DST_MASK; 4414 else 4415 return -EOPNOTSUPP; 4416 4417 /* Filtering on Type of Service is not supported. */ 4418 if (tcp_ip4_spec->tos) 4419 return -EOPNOTSUPP; 4420 4421 break; 4422 case SCTP_V6_FLOW: 4423 new_mask &= ~I40E_VERIFY_TAG_MASK; 4424 fallthrough; 4425 case TCP_V6_FLOW: 4426 case UDP_V6_FLOW: 4427 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec; 4428 4429 /* Check if user provided IPv6 source address. */ 4430 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src, 4431 (struct in6_addr *)&ipv6_full_mask)) 4432 new_mask |= I40E_L3_V6_SRC_MASK; 4433 else if (ipv6_addr_any((struct in6_addr *) 4434 &tcp_ip6_spec->ip6src)) 4435 new_mask &= ~I40E_L3_V6_SRC_MASK; 4436 else 4437 return -EOPNOTSUPP; 4438 4439 /* Check if user provided destination address. */ 4440 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst, 4441 (struct in6_addr *)&ipv6_full_mask)) 4442 new_mask |= I40E_L3_V6_DST_MASK; 4443 else if (ipv6_addr_any((struct in6_addr *) 4444 &tcp_ip6_spec->ip6dst)) 4445 new_mask &= ~I40E_L3_V6_DST_MASK; 4446 else 4447 return -EOPNOTSUPP; 4448 4449 /* L4 source port */ 4450 if (tcp_ip6_spec->psrc == htons(0xFFFF)) 4451 new_mask |= I40E_L4_SRC_MASK; 4452 else if (!tcp_ip6_spec->psrc) 4453 new_mask &= ~I40E_L4_SRC_MASK; 4454 else 4455 return -EOPNOTSUPP; 4456 4457 /* L4 destination port */ 4458 if (tcp_ip6_spec->pdst == htons(0xFFFF)) 4459 new_mask |= I40E_L4_DST_MASK; 4460 else if (!tcp_ip6_spec->pdst) 4461 new_mask &= ~I40E_L4_DST_MASK; 4462 else 4463 return -EOPNOTSUPP; 4464 4465 /* Filtering on Traffic Classes is not supported. */ 4466 if (tcp_ip6_spec->tclass) 4467 return -EOPNOTSUPP; 4468 break; 4469 case IP_USER_FLOW: 4470 usr_ip4_spec = &fsp->m_u.usr_ip4_spec; 4471 4472 /* IPv4 source address */ 4473 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4474 new_mask |= I40E_L3_SRC_MASK; 4475 else if (!usr_ip4_spec->ip4src) 4476 new_mask &= ~I40E_L3_SRC_MASK; 4477 else 4478 return -EOPNOTSUPP; 4479 4480 /* IPv4 destination address */ 4481 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4482 new_mask |= I40E_L3_DST_MASK; 4483 else if (!usr_ip4_spec->ip4dst) 4484 new_mask &= ~I40E_L3_DST_MASK; 4485 else 4486 return -EOPNOTSUPP; 4487 4488 /* First 4 bytes of L4 header */ 4489 if (usr_ip4_spec->l4_4_bytes) 4490 return -EOPNOTSUPP; 4491 4492 /* Filtering on Type of Service is not supported. */ 4493 if (usr_ip4_spec->tos) 4494 return -EOPNOTSUPP; 4495 4496 /* Filtering on IP version is not supported */ 4497 if (usr_ip4_spec->ip_ver) 4498 return -EINVAL; 4499 4500 /* Filtering on L4 protocol is not supported */ 4501 if (usr_ip4_spec->proto) 4502 return -EINVAL; 4503 4504 break; 4505 case IPV6_USER_FLOW: 4506 usr_ip6_spec = &fsp->m_u.usr_ip6_spec; 4507 4508 /* Check if user provided IPv6 source address. */ 4509 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src, 4510 (struct in6_addr *)&ipv6_full_mask)) 4511 new_mask |= I40E_L3_V6_SRC_MASK; 4512 else if (ipv6_addr_any((struct in6_addr *) 4513 &usr_ip6_spec->ip6src)) 4514 new_mask &= ~I40E_L3_V6_SRC_MASK; 4515 else 4516 return -EOPNOTSUPP; 4517 4518 /* Check if user provided destination address. */ 4519 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst, 4520 (struct in6_addr *)&ipv6_full_mask)) 4521 new_mask |= I40E_L3_V6_DST_MASK; 4522 else if (ipv6_addr_any((struct in6_addr *) 4523 &usr_ip6_spec->ip6dst)) 4524 new_mask &= ~I40E_L3_V6_DST_MASK; 4525 else 4526 return -EOPNOTSUPP; 4527 4528 if (usr_ip6_spec->l4_4_bytes) 4529 return -EOPNOTSUPP; 4530 4531 /* Filtering on Traffic class is not supported. */ 4532 if (usr_ip6_spec->tclass) 4533 return -EOPNOTSUPP; 4534 4535 /* Filtering on L4 protocol is not supported */ 4536 if (usr_ip6_spec->l4_proto) 4537 return -EINVAL; 4538 4539 break; 4540 default: 4541 return -EOPNOTSUPP; 4542 } 4543 4544 if (fsp->flow_type & FLOW_EXT) { 4545 /* Allow only 802.1Q and no etype defined, as 4546 * later it's modified to 0x8100 4547 */ 4548 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) && 4549 fsp->h_ext.vlan_etype != 0) 4550 return -EOPNOTSUPP; 4551 if (fsp->m_ext.vlan_tci == htons(0xFFFF)) 4552 new_mask |= I40E_VLAN_SRC_MASK; 4553 else 4554 new_mask &= ~I40E_VLAN_SRC_MASK; 4555 } 4556 4557 /* First, clear all flexible filter entries */ 4558 new_mask &= ~I40E_FLEX_INPUT_MASK; 4559 4560 /* If we have a flexible filter, try to add this offset to the correct 4561 * flexible filter PIT list. Once finished, we can update the mask. 4562 * If the src_offset changed, we will get a new mask value which will 4563 * trigger an input set change. 4564 */ 4565 if (userdef->flex_filter) { 4566 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL; 4567 4568 /* Flexible offset must be even, since the flexible payload 4569 * must be aligned on 2-byte boundary. 4570 */ 4571 if (userdef->flex_offset & 0x1) { 4572 dev_warn(&pf->pdev->dev, 4573 "Flexible data offset must be 2-byte aligned\n"); 4574 return -EINVAL; 4575 } 4576 4577 src_offset = userdef->flex_offset >> 1; 4578 4579 /* FLX_PIT source offset value is only so large */ 4580 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) { 4581 dev_warn(&pf->pdev->dev, 4582 "Flexible data must reside within first 64 bytes of the packet payload\n"); 4583 return -EINVAL; 4584 } 4585 4586 /* See if this offset has already been programmed. If we get 4587 * an ERR_PTR, then the filter is not safe to add. Otherwise, 4588 * if we get a NULL pointer, this means we will need to add 4589 * the offset. 4590 */ 4591 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list, 4592 src_offset); 4593 if (IS_ERR(flex_pit)) 4594 return PTR_ERR(flex_pit); 4595 4596 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown) 4597 * packet types, and thus we need to program both L3 and L4 4598 * flexible values. These must have identical flexible index, 4599 * as otherwise we can't correctly program the input set. So 4600 * we'll find both an L3 and L4 index and make sure they are 4601 * the same. 4602 */ 4603 if (flex_l3) { 4604 l3_flex_pit = 4605 i40e_find_flex_offset(&pf->l3_flex_pit_list, 4606 src_offset); 4607 if (IS_ERR(l3_flex_pit)) 4608 return PTR_ERR(l3_flex_pit); 4609 4610 if (flex_pit) { 4611 /* If we already had a matching L4 entry, we 4612 * need to make sure that the L3 entry we 4613 * obtained uses the same index. 4614 */ 4615 if (l3_flex_pit) { 4616 if (l3_flex_pit->pit_index != 4617 flex_pit->pit_index) { 4618 return -EINVAL; 4619 } 4620 } else { 4621 new_flex_offset = true; 4622 } 4623 } else { 4624 flex_pit = l3_flex_pit; 4625 } 4626 } 4627 4628 /* If we didn't find an existing flex offset, we need to 4629 * program a new one. However, we don't immediately program it 4630 * here because we will wait to program until after we check 4631 * that it is safe to change the input set. 4632 */ 4633 if (!flex_pit) { 4634 new_flex_offset = true; 4635 pit_index = i40e_unused_pit_index(pf); 4636 } else { 4637 pit_index = flex_pit->pit_index; 4638 } 4639 4640 /* Update the mask with the new offset */ 4641 new_mask |= i40e_pit_index_to_mask(pit_index); 4642 } 4643 4644 /* If the mask and flexible filter offsets for this filter match the 4645 * currently programmed values we don't need any input set change, so 4646 * this filter is safe to install. 4647 */ 4648 if (new_mask == current_mask && !new_flex_offset) 4649 return 0; 4650 4651 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n", 4652 i40e_flow_str(fsp)); 4653 i40e_print_input_set(vsi, current_mask, new_mask); 4654 if (new_flex_offset) { 4655 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d", 4656 pit_index, src_offset); 4657 } 4658 4659 /* Hardware input sets are global across multiple ports, so even the 4660 * main port cannot change them when in MFP mode as this would impact 4661 * any filters on the other ports. 4662 */ 4663 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) { 4664 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n"); 4665 return -EOPNOTSUPP; 4666 } 4667 4668 /* This filter requires us to update the input set. However, hardware 4669 * only supports one input set per flow type, and does not support 4670 * separate masks for each filter. This means that we can only support 4671 * a single mask for all filters of a specific type. 4672 * 4673 * If we have preexisting filters, they obviously depend on the 4674 * current programmed input set. Display a diagnostic message in this 4675 * case explaining why the filter could not be accepted. 4676 */ 4677 if (*fdir_filter_count) { 4678 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n", 4679 i40e_flow_str(fsp), 4680 *fdir_filter_count); 4681 return -EOPNOTSUPP; 4682 } 4683 4684 i40e_write_fd_input_set(pf, index, new_mask); 4685 4686 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented 4687 * frames. If we're programming the input set for IPv4/Other, we also 4688 * need to program the IPv4/Fragmented input set. Since we don't have 4689 * separate support, we'll always assume and enforce that the two flow 4690 * types must have matching input sets. 4691 */ 4692 if (index == LIBIE_FILTER_PCTYPE_NONF_IPV4_OTHER) 4693 i40e_write_fd_input_set(pf, LIBIE_FILTER_PCTYPE_FRAG_IPV4, 4694 new_mask); 4695 4696 /* Add the new offset and update table, if necessary */ 4697 if (new_flex_offset) { 4698 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset, 4699 pit_index); 4700 if (err) 4701 return err; 4702 4703 if (flex_l3) { 4704 err = i40e_add_flex_offset(&pf->l3_flex_pit_list, 4705 src_offset, 4706 pit_index); 4707 if (err) 4708 return err; 4709 } 4710 4711 i40e_reprogram_flex_pit(pf); 4712 } 4713 4714 return 0; 4715 } 4716 4717 /** 4718 * i40e_match_fdir_filter - Return true of two filters match 4719 * @a: pointer to filter struct 4720 * @b: pointer to filter struct 4721 * 4722 * Returns true if the two filters match exactly the same criteria. I.e. they 4723 * match the same flow type and have the same parameters. We don't need to 4724 * check any input-set since all filters of the same flow type must use the 4725 * same input set. 4726 **/ 4727 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a, 4728 struct i40e_fdir_filter *b) 4729 { 4730 /* The filters do not much if any of these criteria differ. */ 4731 if (a->dst_ip != b->dst_ip || 4732 a->src_ip != b->src_ip || 4733 a->dst_port != b->dst_port || 4734 a->src_port != b->src_port || 4735 a->flow_type != b->flow_type || 4736 a->ipl4_proto != b->ipl4_proto || 4737 a->vlan_tag != b->vlan_tag || 4738 a->vlan_etype != b->vlan_etype) 4739 return false; 4740 4741 return true; 4742 } 4743 4744 /** 4745 * i40e_disallow_matching_filters - Check that new filters differ 4746 * @vsi: pointer to the targeted VSI 4747 * @input: new filter to check 4748 * 4749 * Due to hardware limitations, it is not possible for two filters that match 4750 * similar criteria to be programmed at the same time. This is true for a few 4751 * reasons: 4752 * 4753 * (a) all filters matching a particular flow type must use the same input 4754 * set, that is they must match the same criteria. 4755 * (b) different flow types will never match the same packet, as the flow type 4756 * is decided by hardware before checking which rules apply. 4757 * (c) hardware has no way to distinguish which order filters apply in. 4758 * 4759 * Due to this, we can't really support using the location data to order 4760 * filters in the hardware parsing. It is technically possible for the user to 4761 * request two filters matching the same criteria but which select different 4762 * queues. In this case, rather than keep both filters in the list, we reject 4763 * the 2nd filter when the user requests adding it. 4764 * 4765 * This avoids needing to track location for programming the filter to 4766 * hardware, and ensures that we avoid some strange scenarios involving 4767 * deleting filters which match the same criteria. 4768 **/ 4769 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi, 4770 struct i40e_fdir_filter *input) 4771 { 4772 struct i40e_pf *pf = vsi->back; 4773 struct i40e_fdir_filter *rule; 4774 struct hlist_node *node2; 4775 4776 /* Loop through every filter, and check that it doesn't match */ 4777 hlist_for_each_entry_safe(rule, node2, 4778 &pf->fdir_filter_list, fdir_node) { 4779 /* Don't check the filters match if they share the same fd_id, 4780 * since the new filter is actually just updating the target 4781 * of the old filter. 4782 */ 4783 if (rule->fd_id == input->fd_id) 4784 continue; 4785 4786 /* If any filters match, then print a warning message to the 4787 * kernel message buffer and bail out. 4788 */ 4789 if (i40e_match_fdir_filter(rule, input)) { 4790 dev_warn(&pf->pdev->dev, 4791 "Existing user defined filter %d already matches this flow.\n", 4792 rule->fd_id); 4793 return -EINVAL; 4794 } 4795 } 4796 4797 return 0; 4798 } 4799 4800 /** 4801 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 4802 * @vsi: pointer to the targeted VSI 4803 * @cmd: command to get or set RX flow classification rules 4804 * 4805 * Add Flow Director filters for a specific flow spec based on their 4806 * protocol. Returns 0 if the filters were successfully added. 4807 **/ 4808 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 4809 struct ethtool_rxnfc *cmd) 4810 { 4811 struct i40e_rx_flow_userdef userdef; 4812 struct ethtool_rx_flow_spec *fsp; 4813 struct i40e_fdir_filter *input; 4814 u16 dest_vsi = 0, q_index = 0; 4815 struct i40e_pf *pf; 4816 int ret = -EINVAL; 4817 u8 dest_ctl; 4818 4819 if (!vsi) 4820 return -EINVAL; 4821 pf = vsi->back; 4822 4823 if (!test_bit(I40E_FLAG_FD_SB_ENA, pf->flags)) 4824 return -EOPNOTSUPP; 4825 4826 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state)) 4827 return -ENOSPC; 4828 4829 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 4830 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 4831 return -EBUSY; 4832 4833 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 4834 return -EBUSY; 4835 4836 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 4837 4838 /* Parse the user-defined field */ 4839 if (i40e_parse_rx_flow_user_data(fsp, &userdef)) 4840 return -EINVAL; 4841 4842 /* Extended MAC field is not supported */ 4843 if (fsp->flow_type & FLOW_MAC_EXT) 4844 return -EINVAL; 4845 4846 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef); 4847 if (ret) 4848 return ret; 4849 4850 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 4851 pf->hw.func_caps.fd_filters_guaranteed)) { 4852 return -EINVAL; 4853 } 4854 4855 /* ring_cookie is either the drop index, or is a mask of the queue 4856 * index and VF id we wish to target. 4857 */ 4858 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { 4859 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4860 } else { 4861 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie); 4862 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie); 4863 4864 if (!vf) { 4865 if (ring >= vsi->num_queue_pairs) 4866 return -EINVAL; 4867 dest_vsi = vsi->id; 4868 } else { 4869 /* VFs are zero-indexed, so we subtract one here */ 4870 vf--; 4871 4872 if (vf >= pf->num_alloc_vfs) 4873 return -EINVAL; 4874 if (ring >= pf->vf[vf].num_queue_pairs) 4875 return -EINVAL; 4876 dest_vsi = pf->vf[vf].lan_vsi_id; 4877 } 4878 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 4879 q_index = ring; 4880 } 4881 4882 input = kzalloc(sizeof(*input), GFP_KERNEL); 4883 4884 if (!input) 4885 return -ENOMEM; 4886 4887 input->fd_id = fsp->location; 4888 input->q_index = q_index; 4889 input->dest_vsi = dest_vsi; 4890 input->dest_ctl = dest_ctl; 4891 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 4892 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id); 4893 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4894 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4895 input->flow_type = fsp->flow_type & ~FLOW_EXT; 4896 4897 input->vlan_etype = fsp->h_ext.vlan_etype; 4898 if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci) 4899 input->vlan_etype = cpu_to_be16(ETH_P_8021Q); 4900 if (fsp->m_ext.vlan_tci && input->vlan_etype) 4901 input->vlan_tag = fsp->h_ext.vlan_tci; 4902 if (input->flow_type == IPV6_USER_FLOW || 4903 input->flow_type == UDP_V6_FLOW || 4904 input->flow_type == TCP_V6_FLOW || 4905 input->flow_type == SCTP_V6_FLOW) { 4906 /* Reverse the src and dest notion, since the HW expects them 4907 * to be from Tx perspective where as the input from user is 4908 * from Rx filter view. 4909 */ 4910 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto; 4911 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc; 4912 input->src_port = fsp->h_u.tcp_ip6_spec.pdst; 4913 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src, 4914 sizeof(__be32) * 4); 4915 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst, 4916 sizeof(__be32) * 4); 4917 } else { 4918 /* Reverse the src and dest notion, since the HW expects them 4919 * to be from Tx perspective where as the input from user is 4920 * from Rx filter view. 4921 */ 4922 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto; 4923 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 4924 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 4925 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4926 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4927 } 4928 4929 if (userdef.flex_filter) { 4930 input->flex_filter = true; 4931 input->flex_word = cpu_to_be16(userdef.flex_word); 4932 input->flex_offset = userdef.flex_offset; 4933 } 4934 4935 /* Avoid programming two filters with identical match criteria. */ 4936 ret = i40e_disallow_matching_filters(vsi, input); 4937 if (ret) 4938 goto free_filter_memory; 4939 4940 /* Add the input filter to the fdir_input_list, possibly replacing 4941 * a previous filter. Do not free the input structure after adding it 4942 * to the list as this would cause a use-after-free bug. 4943 */ 4944 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 4945 ret = i40e_add_del_fdir(vsi, input, true); 4946 if (ret) 4947 goto remove_sw_rule; 4948 return 0; 4949 4950 remove_sw_rule: 4951 hlist_del(&input->fdir_node); 4952 pf->fdir_pf_active_filters--; 4953 free_filter_memory: 4954 kfree(input); 4955 return ret; 4956 } 4957 4958 /** 4959 * i40e_set_rxnfc - command to set RX flow classification rules 4960 * @netdev: network interface device structure 4961 * @cmd: ethtool rxnfc command 4962 * 4963 * Returns Success if the command is supported. 4964 **/ 4965 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 4966 { 4967 struct i40e_netdev_priv *np = netdev_priv(netdev); 4968 struct i40e_vsi *vsi = np->vsi; 4969 int ret = -EOPNOTSUPP; 4970 4971 switch (cmd->cmd) { 4972 case ETHTOOL_SRXCLSRLINS: 4973 ret = i40e_add_fdir_ethtool(vsi, cmd); 4974 break; 4975 case ETHTOOL_SRXCLSRLDEL: 4976 ret = i40e_del_fdir_entry(vsi, cmd); 4977 break; 4978 default: 4979 break; 4980 } 4981 4982 return ret; 4983 } 4984 4985 /** 4986 * i40e_max_channels - get Max number of combined channels supported 4987 * @vsi: vsi pointer 4988 **/ 4989 static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 4990 { 4991 /* TODO: This code assumes DCB and FD is disabled for now. */ 4992 return vsi->alloc_queue_pairs; 4993 } 4994 4995 /** 4996 * i40e_get_channels - Get the current channels enabled and max supported etc. 4997 * @dev: network interface device structure 4998 * @ch: ethtool channels structure 4999 * 5000 * We don't support separate tx and rx queues as channels. The other count 5001 * represents how many queues are being used for control. max_combined counts 5002 * how many queue pairs we can support. They may not be mapped 1 to 1 with 5003 * q_vectors since we support a lot more queue pairs than q_vectors. 5004 **/ 5005 static void i40e_get_channels(struct net_device *dev, 5006 struct ethtool_channels *ch) 5007 { 5008 struct i40e_netdev_priv *np = netdev_priv(dev); 5009 struct i40e_vsi *vsi = np->vsi; 5010 struct i40e_pf *pf = vsi->back; 5011 5012 /* report maximum channels */ 5013 ch->max_combined = i40e_max_channels(vsi); 5014 5015 /* report info for other vector */ 5016 ch->other_count = test_bit(I40E_FLAG_FD_SB_ENA, pf->flags) ? 1 : 0; 5017 ch->max_other = ch->other_count; 5018 5019 /* Note: This code assumes DCB is disabled for now. */ 5020 ch->combined_count = vsi->num_queue_pairs; 5021 } 5022 5023 /** 5024 * i40e_set_channels - Set the new channels count. 5025 * @dev: network interface device structure 5026 * @ch: ethtool channels structure 5027 * 5028 * The new channels count may not be the same as requested by the user 5029 * since it gets rounded down to a power of 2 value. 5030 **/ 5031 static int i40e_set_channels(struct net_device *dev, 5032 struct ethtool_channels *ch) 5033 { 5034 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 5035 struct i40e_netdev_priv *np = netdev_priv(dev); 5036 unsigned int count = ch->combined_count; 5037 struct i40e_vsi *vsi = np->vsi; 5038 struct i40e_pf *pf = vsi->back; 5039 struct i40e_fdir_filter *rule; 5040 struct hlist_node *node2; 5041 int new_count; 5042 int err = 0; 5043 5044 /* We do not support setting channels for any other VSI at present */ 5045 if (vsi->type != I40E_VSI_MAIN) 5046 return -EINVAL; 5047 5048 /* We do not support setting channels via ethtool when TCs are 5049 * configured through mqprio 5050 */ 5051 if (i40e_is_tc_mqprio_enabled(pf)) 5052 return -EINVAL; 5053 5054 /* verify they are not requesting separate vectors */ 5055 if (!count || ch->rx_count || ch->tx_count) 5056 return -EINVAL; 5057 5058 /* verify other_count has not changed */ 5059 if (ch->other_count != (test_bit(I40E_FLAG_FD_SB_ENA, pf->flags) ? 1 : 0)) 5060 return -EINVAL; 5061 5062 /* verify the number of channels does not exceed hardware limits */ 5063 if (count > i40e_max_channels(vsi)) 5064 return -EINVAL; 5065 5066 /* verify that the number of channels does not invalidate any current 5067 * flow director rules 5068 */ 5069 hlist_for_each_entry_safe(rule, node2, 5070 &pf->fdir_filter_list, fdir_node) { 5071 if (rule->dest_ctl != drop && count <= rule->q_index) { 5072 dev_warn(&pf->pdev->dev, 5073 "Existing user defined filter %d assigns flow to queue %d\n", 5074 rule->fd_id, rule->q_index); 5075 err = -EINVAL; 5076 } 5077 } 5078 5079 if (err) { 5080 dev_err(&pf->pdev->dev, 5081 "Existing filter rules must be deleted to reduce combined channel count to %d\n", 5082 count); 5083 return err; 5084 } 5085 5086 /* update feature limits from largest to smallest supported values */ 5087 /* TODO: Flow director limit, DCB etc */ 5088 5089 /* use rss_reconfig to rebuild with new queue count and update traffic 5090 * class queue mapping 5091 */ 5092 new_count = i40e_reconfig_rss_queues(pf, count); 5093 if (new_count > 0) 5094 return 0; 5095 else 5096 return -EINVAL; 5097 } 5098 5099 /** 5100 * i40e_get_rxfh_key_size - get the RSS hash key size 5101 * @netdev: network interface device structure 5102 * 5103 * Returns the table size. 5104 **/ 5105 static u32 i40e_get_rxfh_key_size(struct net_device *netdev) 5106 { 5107 return I40E_HKEY_ARRAY_SIZE; 5108 } 5109 5110 /** 5111 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size 5112 * @netdev: network interface device structure 5113 * 5114 * Returns the table size. 5115 **/ 5116 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) 5117 { 5118 return I40E_HLUT_ARRAY_SIZE; 5119 } 5120 5121 /** 5122 * i40e_get_rxfh - get the rx flow hash indirection table 5123 * @netdev: network interface device structure 5124 * @rxfh: pointer to param struct (indir, key, hfunc) 5125 * 5126 * Reads the indirection table directly from the hardware. Returns 0 on 5127 * success. 5128 **/ 5129 static int i40e_get_rxfh(struct net_device *netdev, 5130 struct ethtool_rxfh_param *rxfh) 5131 { 5132 struct i40e_netdev_priv *np = netdev_priv(netdev); 5133 struct i40e_vsi *vsi = np->vsi; 5134 u8 *lut, *seed = NULL; 5135 int ret; 5136 u16 i; 5137 5138 rxfh->hfunc = ETH_RSS_HASH_TOP; 5139 5140 if (!rxfh->indir) 5141 return 0; 5142 5143 seed = rxfh->key; 5144 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5145 if (!lut) 5146 return -ENOMEM; 5147 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE); 5148 if (ret) 5149 goto out; 5150 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5151 rxfh->indir[i] = (u32)(lut[i]); 5152 5153 out: 5154 kfree(lut); 5155 5156 return ret; 5157 } 5158 5159 /** 5160 * i40e_set_rxfh - set the rx flow hash indirection table 5161 * @netdev: network interface device structure 5162 * @rxfh: pointer to param struct (indir, key, hfunc) 5163 * @extack: extended ACK from the Netlink message 5164 * 5165 * Returns -EINVAL if the table specifies an invalid queue id, otherwise 5166 * returns 0 after programming the table. 5167 **/ 5168 static int i40e_set_rxfh(struct net_device *netdev, 5169 struct ethtool_rxfh_param *rxfh, 5170 struct netlink_ext_ack *extack) 5171 { 5172 struct i40e_netdev_priv *np = netdev_priv(netdev); 5173 struct i40e_vsi *vsi = np->vsi; 5174 struct i40e_pf *pf = vsi->back; 5175 u8 *seed = NULL; 5176 u16 i; 5177 5178 if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && 5179 rxfh->hfunc != ETH_RSS_HASH_TOP) 5180 return -EOPNOTSUPP; 5181 5182 if (rxfh->key) { 5183 if (!vsi->rss_hkey_user) { 5184 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE, 5185 GFP_KERNEL); 5186 if (!vsi->rss_hkey_user) 5187 return -ENOMEM; 5188 } 5189 memcpy(vsi->rss_hkey_user, rxfh->key, I40E_HKEY_ARRAY_SIZE); 5190 seed = vsi->rss_hkey_user; 5191 } 5192 if (!vsi->rss_lut_user) { 5193 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5194 if (!vsi->rss_lut_user) 5195 return -ENOMEM; 5196 } 5197 5198 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 5199 if (rxfh->indir) 5200 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5201 vsi->rss_lut_user[i] = (u8)(rxfh->indir[i]); 5202 else 5203 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE, 5204 vsi->rss_size); 5205 5206 return i40e_config_rss(vsi, seed, vsi->rss_lut_user, 5207 I40E_HLUT_ARRAY_SIZE); 5208 } 5209 5210 /** 5211 * i40e_get_priv_flags - report device private flags 5212 * @dev: network interface device structure 5213 * 5214 * The get string set count and the string set should be matched for each 5215 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags 5216 * array. 5217 * 5218 * Returns a u32 bitmap of flags. 5219 **/ 5220 static u32 i40e_get_priv_flags(struct net_device *dev) 5221 { 5222 struct i40e_netdev_priv *np = netdev_priv(dev); 5223 struct i40e_vsi *vsi = np->vsi; 5224 struct i40e_pf *pf = vsi->back; 5225 u32 i, j, ret_flags = 0; 5226 5227 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5228 const struct i40e_priv_flags *priv_flag; 5229 5230 priv_flag = &i40e_gstrings_priv_flags[i]; 5231 5232 if (test_bit(priv_flag->bitno, pf->flags)) 5233 ret_flags |= BIT(i); 5234 } 5235 5236 if (pf->hw.pf_id != 0) 5237 return ret_flags; 5238 5239 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5240 const struct i40e_priv_flags *priv_flag; 5241 5242 priv_flag = &i40e_gl_gstrings_priv_flags[j]; 5243 5244 if (test_bit(priv_flag->bitno, pf->flags)) 5245 ret_flags |= BIT(i + j); 5246 } 5247 5248 return ret_flags; 5249 } 5250 5251 /** 5252 * i40e_set_priv_flags - set private flags 5253 * @dev: network interface device structure 5254 * @flags: bit flags to be set 5255 **/ 5256 static int i40e_set_priv_flags(struct net_device *dev, u32 flags) 5257 { 5258 DECLARE_BITMAP(changed_flags, I40E_PF_FLAGS_NBITS); 5259 DECLARE_BITMAP(orig_flags, I40E_PF_FLAGS_NBITS); 5260 DECLARE_BITMAP(new_flags, I40E_PF_FLAGS_NBITS); 5261 struct i40e_netdev_priv *np = netdev_priv(dev); 5262 struct i40e_vsi *vsi = np->vsi; 5263 struct i40e_pf *pf = vsi->back; 5264 enum libie_aq_err adq_err; 5265 u32 reset_needed = 0; 5266 int status; 5267 u32 i, j; 5268 5269 bitmap_copy(orig_flags, pf->flags, I40E_PF_FLAGS_NBITS); 5270 bitmap_copy(new_flags, pf->flags, I40E_PF_FLAGS_NBITS); 5271 5272 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5273 const struct i40e_priv_flags *priv_flag; 5274 bool new_val; 5275 5276 priv_flag = &i40e_gstrings_priv_flags[i]; 5277 new_val = (flags & BIT(i)) ? true : false; 5278 5279 /* If this is a read-only flag, it can't be changed */ 5280 if (priv_flag->read_only && 5281 test_bit(priv_flag->bitno, orig_flags) != new_val) 5282 return -EOPNOTSUPP; 5283 5284 if (new_val) 5285 set_bit(priv_flag->bitno, new_flags); 5286 else 5287 clear_bit(priv_flag->bitno, new_flags); 5288 } 5289 5290 if (pf->hw.pf_id != 0) 5291 goto flags_complete; 5292 5293 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5294 const struct i40e_priv_flags *priv_flag; 5295 bool new_val; 5296 5297 priv_flag = &i40e_gl_gstrings_priv_flags[j]; 5298 new_val = (flags & BIT(i + j)) ? true : false; 5299 5300 /* If this is a read-only flag, it can't be changed */ 5301 if (priv_flag->read_only && 5302 test_bit(priv_flag->bitno, orig_flags) != new_val) 5303 return -EOPNOTSUPP; 5304 5305 if (new_val) 5306 set_bit(priv_flag->bitno, new_flags); 5307 else 5308 clear_bit(priv_flag->bitno, new_flags); 5309 } 5310 5311 flags_complete: 5312 bitmap_xor(changed_flags, new_flags, orig_flags, I40E_PF_FLAGS_NBITS); 5313 5314 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags)) 5315 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG; 5316 5317 if (test_bit(I40E_FLAG_VEB_STATS_ENA, changed_flags) || 5318 test_bit(I40E_FLAG_LEGACY_RX_ENA, changed_flags) || 5319 test_bit(I40E_FLAG_SOURCE_PRUNING_DIS, changed_flags)) 5320 reset_needed = BIT(__I40E_PF_RESET_REQUESTED); 5321 5322 /* Before we finalize any flag changes, we need to perform some 5323 * checks to ensure that the changes are supported and safe. 5324 */ 5325 5326 /* ATR eviction is not supported on all devices */ 5327 if (test_bit(I40E_FLAG_HW_ATR_EVICT_ENA, new_flags) && 5328 !test_bit(I40E_HW_CAP_ATR_EVICT, pf->hw.caps)) 5329 return -EOPNOTSUPP; 5330 5331 /* If the driver detected FW LLDP was disabled on init, this flag could 5332 * be set, however we do not support _changing_ the flag: 5333 * - on XL710 if NPAR is enabled or FW API version < 1.7 5334 * - on X722 with FW API version < 1.6 5335 * There are situations where older FW versions/NPAR enabled PFs could 5336 * disable LLDP, however we _must_ not allow the user to enable/disable 5337 * LLDP with this flag on unsupported FW versions. 5338 */ 5339 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags) && 5340 !test_bit(I40E_HW_CAP_FW_LLDP_STOPPABLE, pf->hw.caps)) { 5341 dev_warn(&pf->pdev->dev, 5342 "Device does not support changing FW LLDP\n"); 5343 return -EOPNOTSUPP; 5344 } 5345 5346 if (test_bit(I40E_FLAG_RS_FEC, changed_flags) && 5347 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5348 pf->hw.device_id != I40E_DEV_ID_25G_B) { 5349 dev_warn(&pf->pdev->dev, 5350 "Device does not support changing FEC configuration\n"); 5351 return -EOPNOTSUPP; 5352 } 5353 5354 if (test_bit(I40E_FLAG_BASE_R_FEC, changed_flags) && 5355 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5356 pf->hw.device_id != I40E_DEV_ID_25G_B && 5357 pf->hw.device_id != I40E_DEV_ID_KX_X722) { 5358 dev_warn(&pf->pdev->dev, 5359 "Device does not support changing FEC configuration\n"); 5360 return -EOPNOTSUPP; 5361 } 5362 5363 /* Process any additional changes needed as a result of flag changes. 5364 * The changed_flags value reflects the list of bits that were 5365 * changed in the code above. 5366 */ 5367 5368 /* Flush current ATR settings if ATR was disabled */ 5369 if (test_bit(I40E_FLAG_FD_ATR_ENA, changed_flags) && 5370 !test_bit(I40E_FLAG_FD_ATR_ENA, new_flags)) { 5371 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state); 5372 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state); 5373 } 5374 5375 if (test_bit(I40E_FLAG_TRUE_PROMISC_ENA, changed_flags)) { 5376 u16 sw_flags = 0, valid_flags = 0; 5377 int ret; 5378 5379 if (!test_bit(I40E_FLAG_TRUE_PROMISC_ENA, new_flags)) 5380 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5381 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5382 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags, 5383 0, NULL); 5384 if (ret && pf->hw.aq.asq_last_status != LIBIE_AQ_RC_ESRCH) { 5385 dev_info(&pf->pdev->dev, 5386 "couldn't set switch config bits, err %pe aq_err %s\n", 5387 ERR_PTR(ret), 5388 libie_aq_str(pf->hw.aq.asq_last_status)); 5389 /* not a fatal problem, just keep going */ 5390 } 5391 } 5392 5393 if (test_bit(I40E_FLAG_RS_FEC, changed_flags) || 5394 test_bit(I40E_FLAG_BASE_R_FEC, changed_flags)) { 5395 u8 fec_cfg = 0; 5396 5397 if (test_bit(I40E_FLAG_RS_FEC, new_flags) && 5398 test_bit(I40E_FLAG_BASE_R_FEC, new_flags)) { 5399 fec_cfg = I40E_AQ_SET_FEC_AUTO; 5400 } else if (test_bit(I40E_FLAG_RS_FEC, new_flags)) { 5401 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 5402 I40E_AQ_SET_FEC_ABILITY_RS); 5403 } else if (test_bit(I40E_FLAG_BASE_R_FEC, new_flags)) { 5404 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 5405 I40E_AQ_SET_FEC_ABILITY_KR); 5406 } 5407 if (i40e_set_fec_cfg(dev, fec_cfg)) 5408 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n"); 5409 } 5410 5411 if (test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, changed_flags) && 5412 test_bit(I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENA, orig_flags)) { 5413 dev_err(&pf->pdev->dev, 5414 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n"); 5415 return -EOPNOTSUPP; 5416 } 5417 5418 if (test_bit(I40E_FLAG_VF_VLAN_PRUNING_ENA, changed_flags) && 5419 pf->num_alloc_vfs) { 5420 dev_warn(&pf->pdev->dev, 5421 "Changing vf-vlan-pruning flag while VF(s) are active is not supported\n"); 5422 return -EOPNOTSUPP; 5423 } 5424 5425 if (test_bit(I40E_FLAG_LEGACY_RX_ENA, changed_flags) && 5426 I40E_2K_TOO_SMALL_WITH_PADDING) { 5427 dev_warn(&pf->pdev->dev, 5428 "2k Rx buffer is too small to fit standard MTU and skb_shared_info\n"); 5429 return -EOPNOTSUPP; 5430 } 5431 5432 if (test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, changed_flags) && 5433 test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, new_flags) && 5434 test_bit(I40E_FLAG_MFP_ENA, new_flags)) 5435 dev_warn(&pf->pdev->dev, 5436 "Turning on link-down-on-close flag may affect other partitions\n"); 5437 5438 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags)) { 5439 if (test_bit(I40E_FLAG_FW_LLDP_DIS, new_flags)) { 5440 #ifdef CONFIG_I40E_DCB 5441 i40e_dcb_sw_default_config(pf); 5442 #endif /* CONFIG_I40E_DCB */ 5443 i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL); 5444 i40e_aq_stop_lldp(&pf->hw, true, false, NULL); 5445 } else { 5446 status = i40e_aq_start_lldp(&pf->hw, false, NULL); 5447 if (status) { 5448 adq_err = pf->hw.aq.asq_last_status; 5449 switch (adq_err) { 5450 case LIBIE_AQ_RC_EEXIST: 5451 dev_warn(&pf->pdev->dev, 5452 "FW LLDP agent is already running\n"); 5453 reset_needed = 0; 5454 break; 5455 case LIBIE_AQ_RC_EPERM: 5456 dev_warn(&pf->pdev->dev, 5457 "Device configuration forbids SW from starting the LLDP agent.\n"); 5458 return -EINVAL; 5459 case LIBIE_AQ_RC_EAGAIN: 5460 dev_warn(&pf->pdev->dev, 5461 "Stop FW LLDP agent command is still being processed, please try again in a second.\n"); 5462 return -EBUSY; 5463 default: 5464 dev_warn(&pf->pdev->dev, 5465 "Starting FW LLDP agent failed: error: %pe, %s\n", 5466 ERR_PTR(status), 5467 libie_aq_str(adq_err)); 5468 return -EINVAL; 5469 } 5470 } 5471 } 5472 } 5473 5474 /* Now that we've checked to ensure that the new flags are valid, load 5475 * them into place. Since we only modify flags either (a) during 5476 * initialization or (b) while holding the RTNL lock, we don't need 5477 * anything fancy here. 5478 */ 5479 bitmap_copy(pf->flags, new_flags, I40E_PF_FLAGS_NBITS); 5480 5481 /* Issue reset to cause things to take effect, as additional bits 5482 * are added we will need to create a mask of bits requiring reset 5483 */ 5484 if (reset_needed) 5485 i40e_do_reset(pf, reset_needed, true); 5486 5487 return 0; 5488 } 5489 5490 /** 5491 * i40e_get_module_info - get (Q)SFP+ module type info 5492 * @netdev: network interface device structure 5493 * @modinfo: module EEPROM size and layout information structure 5494 **/ 5495 static int i40e_get_module_info(struct net_device *netdev, 5496 struct ethtool_modinfo *modinfo) 5497 { 5498 struct i40e_netdev_priv *np = netdev_priv(netdev); 5499 struct i40e_vsi *vsi = np->vsi; 5500 struct i40e_pf *pf = vsi->back; 5501 struct i40e_hw *hw = &pf->hw; 5502 u32 sff8472_comp = 0; 5503 u32 sff8472_swap = 0; 5504 u32 sff8636_rev = 0; 5505 u32 type = 0; 5506 int status; 5507 5508 /* Check if firmware supports reading module EEPROM. */ 5509 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) { 5510 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n"); 5511 return -EINVAL; 5512 } 5513 5514 status = i40e_update_link_info(hw); 5515 if (status) 5516 return -EIO; 5517 5518 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) { 5519 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n"); 5520 return -EINVAL; 5521 } 5522 5523 type = hw->phy.link_info.module_type[0]; 5524 5525 switch (type) { 5526 case I40E_MODULE_TYPE_SFP: 5527 status = i40e_aq_get_phy_register(hw, 5528 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5529 I40E_I2C_EEPROM_DEV_ADDR, true, 5530 I40E_MODULE_SFF_8472_COMP, 5531 &sff8472_comp, NULL); 5532 if (status) 5533 return -EIO; 5534 5535 status = i40e_aq_get_phy_register(hw, 5536 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5537 I40E_I2C_EEPROM_DEV_ADDR, true, 5538 I40E_MODULE_SFF_8472_SWAP, 5539 &sff8472_swap, NULL); 5540 if (status) 5541 return -EIO; 5542 5543 /* Check if the module requires address swap to access 5544 * the other EEPROM memory page. 5545 */ 5546 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) { 5547 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n"); 5548 modinfo->type = ETH_MODULE_SFF_8079; 5549 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5550 } else if (sff8472_comp == 0x00) { 5551 /* Module is not SFF-8472 compliant */ 5552 modinfo->type = ETH_MODULE_SFF_8079; 5553 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5554 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) { 5555 /* Module is SFF-8472 compliant but doesn't implement 5556 * Digital Diagnostic Monitoring (DDM). 5557 */ 5558 modinfo->type = ETH_MODULE_SFF_8079; 5559 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5560 } else { 5561 modinfo->type = ETH_MODULE_SFF_8472; 5562 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 5563 } 5564 break; 5565 case I40E_MODULE_TYPE_QSFP_PLUS: 5566 /* Read from memory page 0. */ 5567 status = i40e_aq_get_phy_register(hw, 5568 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5569 0, true, 5570 I40E_MODULE_REVISION_ADDR, 5571 &sff8636_rev, NULL); 5572 if (status) 5573 return -EIO; 5574 /* Determine revision compliance byte */ 5575 if (sff8636_rev > 0x02) { 5576 /* Module is SFF-8636 compliant */ 5577 modinfo->type = ETH_MODULE_SFF_8636; 5578 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5579 } else { 5580 modinfo->type = ETH_MODULE_SFF_8436; 5581 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5582 } 5583 break; 5584 case I40E_MODULE_TYPE_QSFP28: 5585 modinfo->type = ETH_MODULE_SFF_8636; 5586 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5587 break; 5588 default: 5589 netdev_dbg(vsi->netdev, "SFP module type unrecognized or no SFP connector used.\n"); 5590 return -EOPNOTSUPP; 5591 } 5592 return 0; 5593 } 5594 5595 /** 5596 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents 5597 * @netdev: network interface device structure 5598 * @ee: EEPROM dump request structure 5599 * @data: buffer to be filled with EEPROM contents 5600 **/ 5601 static int i40e_get_module_eeprom(struct net_device *netdev, 5602 struct ethtool_eeprom *ee, 5603 u8 *data) 5604 { 5605 struct i40e_netdev_priv *np = netdev_priv(netdev); 5606 struct i40e_vsi *vsi = np->vsi; 5607 struct i40e_pf *pf = vsi->back; 5608 struct i40e_hw *hw = &pf->hw; 5609 bool is_sfp = false; 5610 u32 value = 0; 5611 int status; 5612 int i; 5613 5614 if (!ee || !ee->len || !data) 5615 return -EINVAL; 5616 5617 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP) 5618 is_sfp = true; 5619 5620 for (i = 0; i < ee->len; i++) { 5621 u32 offset = i + ee->offset; 5622 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0; 5623 5624 /* Check if we need to access the other memory page */ 5625 if (is_sfp) { 5626 if (offset >= ETH_MODULE_SFF_8079_LEN) { 5627 offset -= ETH_MODULE_SFF_8079_LEN; 5628 addr = I40E_I2C_EEPROM_DEV_ADDR2; 5629 } 5630 } else { 5631 while (offset >= ETH_MODULE_SFF_8436_LEN) { 5632 /* Compute memory page number and offset. */ 5633 offset -= ETH_MODULE_SFF_8436_LEN / 2; 5634 addr++; 5635 } 5636 } 5637 5638 status = i40e_aq_get_phy_register(hw, 5639 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5640 addr, true, offset, &value, NULL); 5641 if (status) 5642 return -EIO; 5643 data[i] = value; 5644 } 5645 return 0; 5646 } 5647 5648 static void i40e_eee_capability_to_kedata_supported(__le16 eee_capability_, 5649 unsigned long *supported) 5650 { 5651 const int eee_capability = le16_to_cpu(eee_capability_); 5652 static const int lut[] = { 5653 ETHTOOL_LINK_MODE_100baseT_Full_BIT, 5654 ETHTOOL_LINK_MODE_1000baseT_Full_BIT, 5655 ETHTOOL_LINK_MODE_10000baseT_Full_BIT, 5656 ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, 5657 ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, 5658 ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, 5659 ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT, 5660 }; 5661 5662 linkmode_zero(supported); 5663 for (unsigned int i = ARRAY_SIZE(lut); i--; ) 5664 if (eee_capability & BIT(i + 1)) 5665 linkmode_set_bit(lut[i], supported); 5666 } 5667 5668 static int i40e_get_eee(struct net_device *netdev, struct ethtool_keee *edata) 5669 { 5670 struct i40e_netdev_priv *np = netdev_priv(netdev); 5671 struct i40e_aq_get_phy_abilities_resp phy_cfg; 5672 struct i40e_vsi *vsi = np->vsi; 5673 struct i40e_pf *pf = vsi->back; 5674 struct i40e_hw *hw = &pf->hw; 5675 int status; 5676 5677 /* Get initial PHY capabilities */ 5678 status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL); 5679 if (status) 5680 return -EAGAIN; 5681 5682 /* Check whether NIC configuration is compatible with Energy Efficient 5683 * Ethernet (EEE) mode. 5684 */ 5685 if (phy_cfg.eee_capability == 0) 5686 return -EOPNOTSUPP; 5687 5688 i40e_eee_capability_to_kedata_supported(phy_cfg.eee_capability, 5689 edata->supported); 5690 linkmode_copy(edata->lp_advertised, edata->supported); 5691 5692 /* Get current configuration */ 5693 status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL); 5694 if (status) 5695 return -EAGAIN; 5696 5697 linkmode_zero(edata->advertised); 5698 if (phy_cfg.eee_capability) 5699 linkmode_copy(edata->advertised, edata->supported); 5700 edata->eee_enabled = !!phy_cfg.eee_capability; 5701 edata->tx_lpi_enabled = pf->stats.tx_lpi_status; 5702 5703 edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status; 5704 5705 return 0; 5706 } 5707 5708 static int i40e_is_eee_param_supported(struct net_device *netdev, 5709 struct ethtool_keee *edata) 5710 { 5711 struct i40e_netdev_priv *np = netdev_priv(netdev); 5712 struct i40e_vsi *vsi = np->vsi; 5713 struct i40e_pf *pf = vsi->back; 5714 struct i40e_ethtool_not_used { 5715 bool value; 5716 const char *name; 5717 } param[] = { 5718 {!!(edata->advertised[0] & ~edata->supported[0]), "advertise"}, 5719 {!!edata->tx_lpi_timer, "tx-timer"}, 5720 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"} 5721 }; 5722 int i; 5723 5724 for (i = 0; i < ARRAY_SIZE(param); i++) { 5725 if (param[i].value) { 5726 netdev_info(netdev, 5727 "EEE setting %s not supported\n", 5728 param[i].name); 5729 return -EOPNOTSUPP; 5730 } 5731 } 5732 5733 return 0; 5734 } 5735 5736 static int i40e_set_eee(struct net_device *netdev, struct ethtool_keee *edata) 5737 { 5738 struct i40e_netdev_priv *np = netdev_priv(netdev); 5739 struct i40e_aq_get_phy_abilities_resp abilities; 5740 struct i40e_aq_set_phy_config config; 5741 struct i40e_vsi *vsi = np->vsi; 5742 struct i40e_pf *pf = vsi->back; 5743 struct i40e_hw *hw = &pf->hw; 5744 __le16 eee_capability; 5745 int status; 5746 5747 /* Deny parameters we don't support */ 5748 if (i40e_is_eee_param_supported(netdev, edata)) 5749 return -EOPNOTSUPP; 5750 5751 /* Get initial PHY capabilities */ 5752 status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities, 5753 NULL); 5754 if (status) 5755 return -EAGAIN; 5756 5757 /* Check whether NIC configuration is compatible with Energy Efficient 5758 * Ethernet (EEE) mode. 5759 */ 5760 if (abilities.eee_capability == 0) 5761 return -EOPNOTSUPP; 5762 5763 /* Cache initial EEE capability */ 5764 eee_capability = abilities.eee_capability; 5765 5766 /* Get current PHY configuration */ 5767 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 5768 NULL); 5769 if (status) 5770 return -EAGAIN; 5771 5772 /* Cache current PHY configuration */ 5773 config.phy_type = abilities.phy_type; 5774 config.phy_type_ext = abilities.phy_type_ext; 5775 config.link_speed = abilities.link_speed; 5776 config.abilities = abilities.abilities | 5777 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 5778 config.eeer = abilities.eeer_val; 5779 config.low_power_ctrl = abilities.d3_lpan; 5780 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 5781 I40E_AQ_PHY_FEC_CONFIG_MASK; 5782 5783 /* Set desired EEE state */ 5784 if (edata->eee_enabled) { 5785 config.eee_capability = eee_capability; 5786 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5787 } else { 5788 config.eee_capability = 0; 5789 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5790 } 5791 5792 /* Apply modified PHY configuration */ 5793 status = i40e_aq_set_phy_config(hw, &config, NULL); 5794 if (status) 5795 return -EAGAIN; 5796 5797 return 0; 5798 } 5799 5800 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = { 5801 .get_drvinfo = i40e_get_drvinfo, 5802 .set_eeprom = i40e_set_eeprom, 5803 .get_eeprom_len = i40e_get_eeprom_len, 5804 .get_eeprom = i40e_get_eeprom, 5805 }; 5806 5807 static const struct ethtool_ops i40e_ethtool_ops = { 5808 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 5809 ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ | 5810 ETHTOOL_COALESCE_USE_ADAPTIVE | 5811 ETHTOOL_COALESCE_RX_USECS_HIGH | 5812 ETHTOOL_COALESCE_TX_USECS_HIGH, 5813 .get_drvinfo = i40e_get_drvinfo, 5814 .get_regs_len = i40e_get_regs_len, 5815 .get_regs = i40e_get_regs, 5816 .nway_reset = i40e_nway_reset, 5817 .get_link = ethtool_op_get_link, 5818 .get_link_ext_stats = i40e_get_link_ext_stats, 5819 .get_wol = i40e_get_wol, 5820 .set_wol = i40e_set_wol, 5821 .set_eeprom = i40e_set_eeprom, 5822 .get_eeprom_len = i40e_get_eeprom_len, 5823 .get_eeprom = i40e_get_eeprom, 5824 .get_ringparam = i40e_get_ringparam, 5825 .set_ringparam = i40e_set_ringparam, 5826 .get_pauseparam = i40e_get_pauseparam, 5827 .set_pauseparam = i40e_set_pauseparam, 5828 .get_msglevel = i40e_get_msglevel, 5829 .set_msglevel = i40e_set_msglevel, 5830 .get_rxnfc = i40e_get_rxnfc, 5831 .set_rxnfc = i40e_set_rxnfc, 5832 .get_rx_ring_count = i40e_get_rx_ring_count, 5833 .self_test = i40e_diag_test, 5834 .get_strings = i40e_get_strings, 5835 .get_eee = i40e_get_eee, 5836 .set_eee = i40e_set_eee, 5837 .set_phys_id = i40e_set_phys_id, 5838 .get_sset_count = i40e_get_sset_count, 5839 .get_ethtool_stats = i40e_get_ethtool_stats, 5840 .get_coalesce = i40e_get_coalesce, 5841 .set_coalesce = i40e_set_coalesce, 5842 .get_rxfh_key_size = i40e_get_rxfh_key_size, 5843 .get_rxfh_indir_size = i40e_get_rxfh_indir_size, 5844 .get_rxfh = i40e_get_rxfh, 5845 .set_rxfh = i40e_set_rxfh, 5846 .get_rxfh_fields = i40e_get_rxfh_fields, 5847 .set_rxfh_fields = i40e_set_rxfh_fields, 5848 .get_channels = i40e_get_channels, 5849 .set_channels = i40e_set_channels, 5850 .get_module_info = i40e_get_module_info, 5851 .get_module_eeprom = i40e_get_module_eeprom, 5852 .get_ts_info = i40e_get_ts_info, 5853 .get_priv_flags = i40e_get_priv_flags, 5854 .set_priv_flags = i40e_set_priv_flags, 5855 .get_per_queue_coalesce = i40e_get_per_queue_coalesce, 5856 .set_per_queue_coalesce = i40e_set_per_queue_coalesce, 5857 .get_link_ksettings = i40e_get_link_ksettings, 5858 .set_link_ksettings = i40e_set_link_ksettings, 5859 .get_fecparam = i40e_get_fec_param, 5860 .set_fecparam = i40e_set_fec_param, 5861 .flash_device = i40e_ddp_flash, 5862 }; 5863 5864 void i40e_set_ethtool_ops(struct net_device *netdev) 5865 { 5866 struct i40e_netdev_priv *np = netdev_priv(netdev); 5867 struct i40e_pf *pf = np->vsi->back; 5868 5869 if (!test_bit(__I40E_RECOVERY_MODE, pf->state)) 5870 netdev->ethtool_ops = &i40e_ethtool_ops; 5871 else 5872 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops; 5873 } 5874